216562072 has 16 divisors (see below), whose sum is σ = 409780800. Its totient is φ = 107287200.

The previous prime is 216562069. The next prime is 216562097. The reversal of 216562072 is 270265612.

216562072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 123304 + ... + 125047.

It is an arithmetic number, because the mean of its divisors is an integer number (25611300).

Almost surely, 2^216562072 is an apocalyptic number.

It is an amenable number.

216562072 is a deficient number, since it is larger than the sum of its proper divisors (193218728).

216562072 is a wasteful number, since it uses less digits than its factorization.

216562072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248466 (or 248462 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 216562072 is about 14716.0481108211. The cubic root of 216562072 is about 600.5199862640.

The spelling of 216562072 in words is "two hundred sixteen million, five hundred sixty-two thousand, seventy-two".