31356366164 has 24 divisors (see below), whose sum is σ = 57268306368. Its totient is φ = 14994203840.

The previous prime is 31356366163. The next prime is 31356366191. The reversal of 31356366164 is 46166365313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31356366163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671744 + ... + 716904.

It is an arithmetic number, because the mean of its divisors is an integer number (2386179432).

Almost surely, 2^31356366164 is an apocalyptic number.

It is an amenable number.

31356366164 is a deficient number, since it is larger than the sum of its proper divisors (25911940204).

31356366164 is a wasteful number, since it uses less digits than its factorization.

31356366164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52735 (or 52733 counting only the distinct ones).

The product of its digits is 699840, while the sum is 44.

The spelling of 31356366164 in words is "thirty-one billion, three hundred fifty-six million, three hundred sixty-six thousand, one hundred sixty-four".