15999472296 has 64 divisors (see below), whose sum is σ = 44472600000. Its totient is φ = 5329603008.

The previous prime is 15999472283. The next prime is 15999472301. The reversal of 15999472296 is 69227499951.

15999472296 is a `hidden beast` number, since 1 + 59 + 99 + 472 + 29 + 6 = 666.

It is a super-2 number, since 2×15999472296² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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, 310675 + ... + 358493.

It is an arithmetic number, because the mean of its divisors is an integer number (694884375).

Almost surely, 2^15999472296 is an apocalyptic number.

It is an amenable number.

15999472296 is an abundant number, since it is smaller than the sum of its proper divisors (28473127704).

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

15999472296 is a wasteful number, since it uses less digits than its factorization.

15999472296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49383 (or 49373 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The spelling of 15999472296 in words is "fifteen billion, nine hundred ninety-nine million, four hundred seventy-two thousand, two hundred ninety-six".