630657900664 has 32 divisors (see below), whose sum is σ = 1290194951040. Its totient is φ = 286615375200.

The previous prime is 630657900619. The next prime is 630657900667. The reversal of 630657900664 is 466009756036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630657900667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52284 + ... + 1124299.

It is an arithmetic number, because the mean of its divisors is an integer number (40318592220).

Almost surely, 2^630657900664 is an apocalyptic number.

It is an amenable number.

630657900664 is an abundant number, since it is smaller than the sum of its proper divisors (659537050376).

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

630657900664 is a wasteful number, since it uses less digits than its factorization.

630657900664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182691 (or 1182687 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 630657900664 in words is "six hundred thirty billion, six hundred fifty-seven million, nine hundred thousand, six hundred sixty-four".