18940092725656 has 16 divisors (see below), whose sum is σ = 35838478209600. Its totient is φ = 9383165203104.

The previous prime is 18940092725641. The next prime is 18940092725747. The reversal of 18940092725656 is 65652729004981.

It is a super-2 number, since 2×18940092725656² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10860144040 + ... + 10860145783.

It is an arithmetic number, because the mean of its divisors is an integer number (2239904888100).

Almost surely, 2^{18940092725656} is an apocalyptic number.

It is an amenable number.

18940092725656 is a deficient number, since it is larger than the sum of its proper divisors (16898385483944).

18940092725656 is a wasteful number, since it uses less digits than its factorization.

18940092725656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720289938 (or 21720289934 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 18940092725656 in words is "eighteen trillion, nine hundred forty billion, ninety-two million, seven hundred twenty-five thousand, six hundred fifty-six".