616650564 has 36 divisors (see below), whose sum is σ = 1458982896. Its totient is φ = 202713408.

The previous prime is 616650557. The next prime is 616650589. The reversal of 616650564 is 465056616.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59127 + ... + 68769.

Almost surely, 2^616650564 is an apocalyptic number.

It is an amenable number.

616650564 is an abundant number, since it is smaller than the sum of its proper divisors (842332332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616650564 is a wasteful number, since it uses less digits than its factorization.

616650564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9796 (or 9721 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 616650564 is about 24832.4498187352. The cubic root of 616650564 is about 851.1636031351.

The spelling of 616650564 in words is "six hundred sixteen million, six hundred fifty thousand, five hundred sixty-four".