15640504125164 has 12 divisors (see below), whose sum is σ = 27370954245600. Its totient is φ = 7820231483568.

The previous prime is 15640504125151. The next prime is 15640504125167. The reversal of 15640504125164 is 46152140504651.

It is not an unprimeable number, because it can be changed into a prime (15640504125167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366404 + ... + 6527915.

It is an arithmetic number, because the mean of its divisors is an integer number (2280912853800).

Almost surely, 2^{15640504125164} is an apocalyptic number.

It is an amenable number.

15640504125164 is a deficient number, since it is larger than the sum of its proper divisors (11730450120436).

15640504125164 is a wasteful number, since it uses less digits than its factorization.

15640504125164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289512 (or 10289510 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 15640504125164 in words is "fifteen trillion, six hundred forty billion, five hundred four million, one hundred twenty-five thousand, one hundred sixty-four".