What six hundred and sixty-six actually means across traditions
666 is the most famous number in the subject and one of the few where the historical answer is essentially settled — by the variant reading that most people have never heard of.
This page collects every attestation of 666 documented on this site — 5 entries drawn from 3 traditions — each with the source you would use to check it and the evidence grade it carries. The table is generated directly from the published dataset, so it cannot disagree with it.
Attestations of 666
Sorted by tradition. A grade of verified means the tradition demonstrably says this — not that the claim is true about the world.
| Tradition | Attestation | Grade | Where to check it | Full discussion |
|---|---|---|---|---|
| Christian | "Let him calculate the number of the beast… his number is 666" | verified | Revelation 13:18 | page |
| Christian | Hebrew gematria of "Neron Caesar" (נרון קסר) totals 666; the Latinised "Nero Caesar" without the final nun totals 616 — which explains both readings with one identification | verified | Hebrew gematria; standard commentary | page |
| Christian | Number of the beast (Revelation 13:18) = 6 × 111 | verified | NT canon | page |
| Mathematics | 666 is the 36th triangular number, and 36 is itself the 8th triangular number | verified | elementary number theory | page |
| Modern | Assignments of 666 to modern individuals or institutions work only by choosing a letter-value scheme after choosing the target; the method will produce a hit for almost any name | disputed | see the methodology page on post-hoc selection | page |
Mathematical properties of 666
Computed, not asserted. These are the properties any numerological reading has to work with, and often the ones that explain a number’s practical popularity.
| Property | Value |
|---|---|
| Prime factorisation | 2 × 32 × 37 |
| Divisors | 12 — 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666 |
| Sum of proper divisors | 816 — abundant |
| Digit sum / digital root | 18 / 9 |
| Triangular | yes — the 36th triangular number |
What the evidence supports
verified — overall assessment
Revelation invites the calculation explicitly. Hebrew gematria of “Neron Caesar” (נרון קסר) totals 666; drop the final nun, as the Latin form does, and the same name totals 616 — which is exactly the variant preserved in Papyrus 115 and Codex Ephraemi. One identification explains both readings, which is why it is the mainstream one. Modern assignments of 666 to contemporary figures work by picking a letter-value scheme after picking the target; with that freedom almost any name can be made to total 666, which is why such matches carry no evidential weight.
Try the number directly in the number lookup, or filter the full dataset in the comparison matrix.
Other number hubs
Every number in the corpus, including those without a hub page, is queryable in the number lookup.
Number Lookup
Query any integer and get its attestations and computed mathematical properties.
Comparison Matrix
The whole dataset as a filterable grid — tradition, number, meaning and grade.
Testing the Patterns
How these grades are assigned, and why a recurring number is weaker evidence than it looks.
Sacred Numbers
The comparative essays behind these hub tables.
Cite this page
Formatted references for this page. The evidence grade is part of the claim — when quoting a graded statement, carry the grade with it.