31107664301664 has 48 divisors (see below), whose sum is σ = 81769020912432. Its totient is φ = 10355075132928.

The previous prime is 31107664301617. The next prime is 31107664301671. The reversal of 31107664301664 is 46610346670113.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 220965219 + ... + 221105954.

It is an arithmetic number, because the mean of its divisors is an integer number (1703521269009).

Almost surely, 2^{31107664301664} is an apocalyptic number.

It is an amenable number.

31107664301664 is an abundant number, since it is smaller than the sum of its proper divisors (50661356610768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31107664301664 is a wasteful number, since it uses less digits than its factorization.

31107664301664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442071919 (or 442071911 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 31107664301664 in words is "thirty-one trillion, one hundred seven billion, six hundred sixty-four million, three hundred one thousand, six hundred sixty-four".