631166136044012 has 12 divisors (see below), whose sum is σ = 1109162247443040. Its totient is φ = 314262636774576.

The previous prime is 631166136043979. The next prime is 631166136044021. The reversal of 631166136044012 is 210440631661136.

It is a super-2 number, since 2×631166136044012² (a number of 30 digits) contains 22 as substring.

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, 330107810783 + ... + 330107812694.

It is an arithmetic number, because the mean of its divisors is an integer number (92430187286920).

Almost surely, 2^{631166136044012} is an apocalyptic number.

It is an amenable number.

631166136044012 is a deficient number, since it is larger than the sum of its proper divisors (477996111399028).

631166136044012 is a wasteful number, since it uses less digits than its factorization.

631166136044012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660215623720 (or 660215623718 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 631166136044012 in words is "six hundred thirty-one trillion, one hundred sixty-six billion, one hundred thirty-six million, forty-four thousand, twelve".