15216845078 has 32 divisors (see below), whose sum is σ = 24293551104. Its totient is φ = 7123756032.

The previous prime is 15216845069. The next prime is 15216845093. The reversal of 15216845078 is 87054861251.

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, 5949776 + ... + 5952332.

It is an arithmetic number, because the mean of its divisors is an integer number (759173472).

Almost surely, 2^15216845078 is an apocalyptic number.

15216845078 is a deficient number, since it is larger than the sum of its proper divisors (9076706026).

15216845078 is a wasteful number, since it uses less digits than its factorization.

15216845078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 15216845078 in words is "fifteen billion, two hundred sixteen million, eight hundred forty-five thousand, seventy-eight".