30616505664 has 56 divisors (see below), whose sum is σ = 81723097920. Its totient is φ = 10115180544.

The previous prime is 30616505659. The next prime is 30616505701. The reversal of 30616505664 is 46650561603.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683884 + ... + 727275.

Almost surely, 2^30616505664 is an apocalyptic number.

It is an amenable number.

30616505664 is an abundant number, since it is smaller than the sum of its proper divisors (51106592256).

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

30616505664 is a wasteful number, since it uses less digits than its factorization.

30616505664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411287 (or 1411277 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 30616505664 in words is "thirty billion, six hundred sixteen million, five hundred five thousand, six hundred sixty-four".