631672564160 has 224 divisors, whose sum is σ = 1651801420800. Its totient is φ = 228180234240.

The previous prime is 631672564147. The next prime is 631672564207. The reversal of 631672564160 is 61465276136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520751714 + ... + 520752926.

Almost surely, 2^631672564160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631672564160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825900710400).

631672564160 is an abundant number, since it is smaller than the sum of its proper divisors (1020128856640).

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

631672564160 is a wasteful number, since it uses less digits than its factorization.

631672564160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 631672564160 in words is "six hundred thirty-one billion, six hundred seventy-two million, five hundred sixty-four thousand, one hundred sixty".