The number 
,
where 666 is the beast number and 
denotes a factorial. The number
has approximately 
decimal digits.
The number of trailing zeros in the Leviathan number is
 |  |  |
(1)
|
 |  |  |
(2)
|
(Pickover 1995).
Leviathan Number
See also
Apocalypse Number, Apocalyptic Number, Beast Number, Factorial, Legion's NumbersExplore with Wolfram|Alpha
References
Pickover, C. A. Keys to Infinity. New York: Wiley, pp. 97-102, 1995.Pickover, C. A. "The Leviathan Number." Ch. 83 in Wonders of Numbers: Adventures in Mathematics, Mind, and Meaning. Oxford, England: Oxford University Press, p. 196, 2001.Referenced on Wolfram|Alpha
Leviathan NumberCite this as:
Weisstein, Eric W. "Leviathan Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LeviathanNumber.html