15992157272 has 64 divisors (see below), whose sum is σ = 38847379200. Its totient is φ = 5993585280.

The previous prime is 15992157263. The next prime is 15992157287. The reversal of 15992157272 is 27275129951.

It is a self number, because there is not a number n which added to its sum of digits gives 15992157272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564254 + ... + 591917.

It is an arithmetic number, because the mean of its divisors is an integer number (606990300).

Almost surely, 2^15992157272 is an apocalyptic number.

It is an amenable number.

15992157272 is an abundant number, since it is smaller than the sum of its proper divisors (22855221928).

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

15992157272 is a wasteful number, since it uses less digits than its factorization.

15992157272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156216 (or 1156212 counting only the distinct ones).

The product of its digits is 793800, while the sum is 50.

The spelling of 15992157272 in words is "fifteen billion, nine hundred ninety-two million, one hundred fifty-seven thousand, two hundred seventy-two".