631224312160 has 96 divisors (see below), whose sum is σ = 1606331986560. Its totient is φ = 233016403968.

The previous prime is 631224312157. The next prime is 631224312211. The reversal of 631224312160 is 61213422136.

631224312160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10229881 + ... + 10291399.

It is an arithmetic number, because the mean of its divisors is an integer number (16732624860).

Almost surely, 2^631224312160 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 631224312160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803165993280).

631224312160 is an abundant number, since it is smaller than the sum of its proper divisors (975107674400).

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

631224312160 is a wasteful number, since it uses less digits than its factorization.

631224312160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66480 (or 66472 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 631224312160 its reverse (61213422136), we get a palindrome (692437734296).

The spelling of 631224312160 in words is "six hundred thirty-one billion, two hundred twenty-four million, three hundred twelve thousand, one hundred sixty".