215975888016 has 80 divisors (see below), whose sum is σ = 650656272000. Its totient is φ = 61707391872.

The previous prime is 215975887997. The next prime is 215975888033. The reversal of 215975888016 is 610888579512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6542571 + ... + 6575498.

It is an arithmetic number, because the mean of its divisors is an integer number (8133203400).

Almost surely, 2^215975888016 is an apocalyptic number.

It is an amenable number.

215975888016 is an abundant number, since it is smaller than the sum of its proper divisors (434680383984).

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

215975888016 is a wasteful number, since it uses less digits than its factorization.

215975888016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118101 (or 13118081 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 215975888016 in words is "two hundred fifteen billion, nine hundred seventy-five million, eight hundred eighty-eight thousand, sixteen".