15216172056902 has 32 divisors (see below), whose sum is σ = 23023608994080. Its totient is φ = 7541921882880.

The previous prime is 15216172056881. The next prime is 15216172056937. The reversal of 15216172056902 is 20965027161251.

15216172056902 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191761628 + ... + 191840960.

It is an arithmetic number, because the mean of its divisors is an integer number (719487781065).

Almost surely, 2^{15216172056902} is an apocalyptic number.

15216172056902 is a deficient number, since it is larger than the sum of its proper divisors (7807436937178).

15216172056902 is a wasteful number, since it uses less digits than its factorization.

15216172056902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81128.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 15216172056902 in words is "fifteen trillion, two hundred sixteen billion, one hundred seventy-two million, fifty-six thousand, nine hundred two".