216552716 has 12 divisors (see below), whose sum is σ = 379628088. Its totient is φ = 108087552.

The previous prime is 216552703. The next prime is 216552731. The reversal of 216552716 is 617255612.

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, 44606 + ... + 49221.

It is an arithmetic number, because the mean of its divisors is an integer number (31635674).

Almost surely, 2^216552716 is an apocalyptic number.

It is an amenable number.

216552716 is a deficient number, since it is larger than the sum of its proper divisors (163075372).

216552716 is a wasteful number, since it uses less digits than its factorization.

216552716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94408 (or 94406 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 216552716 is about 14715.7302231320. The cubic root of 216552716 is about 600.5113381724.

The spelling of 216552716 in words is "two hundred sixteen million, five hundred fifty-two thousand, seven hundred sixteen".