631555116 has 24 divisors (see below), whose sum is σ = 1498607040. Its totient is φ = 206950032.

The previous prime is 631555097. The next prime is 631555123. The reversal of 631555116 is 611555136.

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, 445306 + ... + 446721.

It is an arithmetic number, because the mean of its divisors is an integer number (62441960).

Almost surely, 2^631555116 is an apocalyptic number.

It is an amenable number.

631555116 is an abundant number, since it is smaller than the sum of its proper divisors (867051924).

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

631555116 is a wasteful number, since it uses less digits than its factorization.

631555116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892093 (or 892091 counting only the distinct ones).

The product of its digits is 13500, while the sum is 33.

The square root of 631555116 is about 25130.7603545933. The cubic root of 631555116 is about 857.9666746094.

The spelling of 631555116 in words is "six hundred thirty-one million, five hundred fifty-five thousand, one hundred sixteen".