631166481892 has 12 divisors (see below), whose sum is σ = 1104584697216. Its totient is φ = 315570854120.

The previous prime is 631166481877. The next prime is 631166481929. The reversal of 631166481892 is 298184661136.

631166481892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×631166481892² (a number of 24 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, 2981584 + ... + 3186247.

It is an arithmetic number, because the mean of its divisors is an integer number (92048724768).

Almost surely, 2^631166481892 is an apocalyptic number.

It is an amenable number.

631166481892 is a deficient number, since it is larger than the sum of its proper divisors (473418215324).

631166481892 is a wasteful number, since it uses less digits than its factorization.

631166481892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193418 (or 6193416 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The spelling of 631166481892 in words is "six hundred thirty-one billion, one hundred sixty-six million, four hundred eighty-one thousand, eight hundred ninety-two".