631630177232 has 40 divisors (see below), whose sum is σ = 1230825909600. Its totient is φ = 313998276992.

The previous prime is 631630177207. The next prime is 631630177247. The reversal of 631630177232 is 232771036136.

It is a self number, because there is not a number n which added to its sum of digits gives 631630177232.

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, 21514019 + ... + 21543357.

It is an arithmetic number, because the mean of its divisors is an integer number (30770647740).

Almost surely, 2^631630177232 is an apocalyptic number.

It is an amenable number.

631630177232 is a deficient number, since it is larger than the sum of its proper divisors (599195732368).

631630177232 is a wasteful number, since it uses less digits than its factorization.

631630177232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37043 (or 37037 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 631630177232 in words is "six hundred thirty-one billion, six hundred thirty million, one hundred seventy-seven thousand, two hundred thirty-two".