15664313104 has 40 divisors (see below), whose sum is σ = 33140914560. Its totient is φ = 7113206400.

The previous prime is 15664313087. The next prime is 15664313117. The reversal of 15664313104 is 40131346651.

It is a super-2 number, since 2×15664313104² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15664313104.

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, 140034 + ... + 225694.

It is an arithmetic number, because the mean of its divisors is an integer number (828522864).

Almost surely, 2^15664313104 is an apocalyptic number.

It is an amenable number.

15664313104 is an abundant number, since it is smaller than the sum of its proper divisors (17476601456).

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

15664313104 is a wasteful number, since it uses less digits than its factorization.

15664313104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86719 (or 86713 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 15664313104 its reverse (40131346651), we get a palindrome (55795659755).

The spelling of 15664313104 in words is "fifteen billion, six hundred sixty-four million, three hundred thirteen thousand, one hundred four".