15628215036172 has 48 divisors (see below), whose sum is σ = 28039127380992. Its totient is φ = 7617347438720.

The previous prime is 15628215036169. The next prime is 15628215036251. The reversal of 15628215036172 is 27163051282651.

It is a super-2 number, since 2×15628215036172² (a number of 27 digits) contains 22 as substring.

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, 1235718753 + ... + 1235731399.

It is an arithmetic number, because the mean of its divisors is an integer number (584148487104).

Almost surely, 2^{15628215036172} is an apocalyptic number.

It is an amenable number.

15628215036172 is a deficient number, since it is larger than the sum of its proper divisors (12410912344820).

15628215036172 is a wasteful number, since it uses less digits than its factorization.

15628215036172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18198 (or 18196 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 15628215036172 in words is "fifteen trillion, six hundred twenty-eight billion, two hundred fifteen million, thirty-six thousand, one hundred seventy-two".