216516603304 has 64 divisors (see below), whose sum is σ = 415918800000. Its totient is φ = 105638480640.

The previous prime is 216516603271. The next prime is 216516603313. The reversal of 216516603304 is 403306615612.

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, 92804922 + ... + 92807254.

It is an arithmetic number, because the mean of its divisors is an integer number (6498731250).

Almost surely, 2^216516603304 is an apocalyptic number.

It is an amenable number.

216516603304 is a deficient number, since it is larger than the sum of its proper divisors (199402196696).

216516603304 is a wasteful number, since it uses less digits than its factorization.

216516603304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018 (or 4014 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 216516603304 in words is "two hundred sixteen billion, five hundred sixteen million, six hundred three thousand, three hundred four".