Apocalyhexakosioihexekontahexa number

Apocalyhexakosioihexekontahexa numbers are numbers of the form 666n such that the number 666 appears somewhere within the complete decimal expansion of that number. The term was coined by Melvin Terronundefined, a self-proclaimed googological enthusiast.

6661 is the first Apocalyhexakosioihexekontahexa number, though 66625 is the first non-trivial Apocalyhexakosioihexekontahexa number.