15979172096 has 36 divisors (see below), whose sum is σ = 31929882012. Its totient is φ = 7981080576.

The previous prime is 15979172087. The next prime is 15979172221. The reversal of 15979172096 is 69027197951.

It can be written as a sum of positive squares in 2 ways, for example, as 7248138496 + 8731033600 = 85136^2 + 93440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211220 + ... + 276716.

It is an arithmetic number, because the mean of its divisors is an integer number (886941167).

Almost surely, 2^15979172096 is an apocalyptic number.

15979172096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15979172096 is a deficient number, since it is larger than the sum of its proper divisors (15950709916).

15979172096 is an frugal number, since it uses more digits than its factorization.

15979172096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66466 (or 66452 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 56.

The spelling of 15979172096 in words is "fifteen billion, nine hundred seventy-nine million, one hundred seventy-two thousand, ninety-six".