15616979158 has 16 divisors (see below), whose sum is σ = 25988195520. Its totient is φ = 6978310600.

The previous prime is 15616979141. The next prime is 15616979207. The reversal of 15616979158 is 85197961651.

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, 6014488 + ... + 6017083.

It is an arithmetic number, because the mean of its divisors is an integer number (1624262220).

Almost surely, 2^15616979158 is an apocalyptic number.

15616979158 is a deficient number, since it is larger than the sum of its proper divisors (10371216362).

15616979158 is a wasteful number, since it uses less digits than its factorization.

15616979158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12031643.

The product of its digits is 4082400, while the sum is 58.

The spelling of 15616979158 in words is "fifteen billion, six hundred sixteen million, nine hundred seventy-nine thousand, one hundred fifty-eight".