A number having 666 digits (where 666 is the beast number) is called an apocalypse number. The Fibonacci number F_3184 is the smallest Fibonacci apocalypse number. Apocalypse primes are given by 10^665 + n for n = 123, 1837, 6409, 7329, 8569, 8967, 9663, ... (OEIS A115983). The smallest apocalypse prime containing the digits 666 is 10^665 + 166657 (Rupinski).

apocalyptic number | beast number | evil number | legion's numbers | Leviathan number