216001516 has 12 divisors (see below), whose sum is σ = 379236088. Its totient is φ = 107648352.

The previous prime is 216001493. The next prime is 216001543. The reversal of 216001516 is 615100612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86721 + ... + 89176.

Almost surely, 2^216001516 is an apocalyptic number.

It is an amenable number.

216001516 is a deficient number, since it is larger than the sum of its proper divisors (163234572).

216001516 is a wasteful number, since it uses less digits than its factorization.

216001516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176208 (or 176206 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 216001516 is about 14696.9900319759. The cubic root of 216001516 is about 600.0014037004.

The spelling of 216001516 in words is "two hundred sixteen million, one thousand, five hundred sixteen".