633732516990 has 48 divisors (see below), whose sum is σ = 1667556425808. Its totient is φ = 166959247488.

The previous prime is 633732516983. The next prime is 633732517007. The reversal of 633732516990 is 99615237336.

633732516990 is a `hidden beast` number, since 6 + 3 + 3 + 7 + 32 + 516 + 9 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42411039 + ... + 42425978.

It is an arithmetic number, because the mean of its divisors is an integer number (34740758871).

Almost surely, 2^633732516990 is an apocalyptic number.

633732516990 is an abundant number, since it is smaller than the sum of its proper divisors (1033823908818).

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

633732516990 is a wasteful number, since it uses less digits than its factorization.

633732516990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84837113 (or 84837110 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 54.

The spelling of 633732516990 in words is "six hundred thirty-three billion, seven hundred thirty-two million, five hundred sixteen thousand, nine hundred ninety".