216996016 has 10 divisors (see below), whose sum is σ = 420429812. Its totient is φ = 108498000.

The previous prime is 216995981. The next prime is 216996079. The reversal of 216996016 is 610699612.

216996016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 216996016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6781110 + ... + 6781141.

Almost surely, 2^216996016 is an apocalyptic number.

It is an amenable number.

216996016 is a deficient number, since it is larger than the sum of its proper divisors (203433796).

216996016 is a wasteful number, since it uses less digits than its factorization.

216996016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13562259 (or 13562253 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 216996016 is about 14730.7846362643. The cubic root of 216996016 is about 600.9208231221.

The spelling of 216996016 in words is "two hundred sixteen million, nine hundred ninety-six thousand, sixteen".