Leviathan Number

The number $(10^{666})!$, where 666 is the Beast Number and $n!$ denotes a Factorial. The number of trailing zeros in the Leviathan number is $25\times 10^{664}-143$ (Pickover 1995).

See also 666, Apocalypse Number, Apocalyptic Number, Beast Number

References

Pickover, C. A. Keys to Infinity. New York: Wiley, pp. 97-102, 1995.