631166496 has 48 divisors (see below), whose sum is σ = 1663804800. Its totient is φ = 209500928.

The previous prime is 631166449. The next prime is 631166521. The reversal of 631166496 is 694661136.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×631166496² = 796742291345836032, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 9190 + ... + 36698.

It is an arithmetic number, because the mean of its divisors is an integer number (34662600).

Almost surely, 2^631166496 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 631166496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831902400).

631166496 is an abundant number, since it is smaller than the sum of its proper divisors (1032638304).

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

631166496 is a wasteful number, since it uses less digits than its factorization.

631166496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27761 (or 27753 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 631166496 is about 25123.0272061310. The cubic root of 631166496 is about 857.7906586063.

The spelling of 631166496 in words is "six hundred thirty-one million, one hundred sixty-six thousand, four hundred ninety-six".