15999079504 has 40 divisors (see below), whose sum is σ = 32772332000. Its totient is φ = 7545384576.

The previous prime is 15999079493. The next prime is 15999079543. The reversal of 15999079504 is 40597099951.

It is a happy number.

15999079504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45294 + ... + 184525.

It is an arithmetic number, because the mean of its divisors is an integer number (819308300).

Almost surely, 2^15999079504 is an apocalyptic number.

It is an amenable number.

15999079504 is an abundant number, since it is smaller than the sum of its proper divisors (16773252496).

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

15999079504 is a wasteful number, since it uses less digits than its factorization.

15999079504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230075 (or 230069 counting only the distinct ones).

The product of its (nonzero) digits is 4592700, while the sum is 58.

The spelling of 15999079504 in words is "fifteen billion, nine hundred ninety-nine million, seventy-nine thousand, five hundred four".