31066704664 has 32 divisors (see below), whose sum is σ = 59983338240. Its totient is φ = 15075116800.

The previous prime is 31066704631. The next prime is 31066704677. The reversal of 31066704664 is 46640766013.

It is a self number, because there is not a number n which added to its sum of digits gives 31066704664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185299 + ... + 310594.

It is an arithmetic number, because the mean of its divisors is an integer number (1874479320).

Almost surely, 2^31066704664 is an apocalyptic number.

It is an amenable number.

31066704664 is a deficient number, since it is larger than the sum of its proper divisors (28916633576).

31066704664 is a wasteful number, since it uses less digits than its factorization.

31066704664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496131 (or 496127 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 31066704664 in words is "thirty-one billion, sixty-six million, seven hundred four thousand, six hundred sixty-four".