631330623265232 has 80 divisors (see below), whose sum is σ = 1346459530003200. Its totient is φ = 284376673996800.

The previous prime is 631330623265193. The next prime is 631330623265259. The reversal of 631330623265232 is 232562326033136.

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, 105456857 + ... + 111282567.

It is an arithmetic number, because the mean of its divisors is an integer number (16830744125040).

Almost surely, 2^{631330623265232} 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 631330623265232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673229765001600).

631330623265232 is an abundant number, since it is smaller than the sum of its proper divisors (715128906737968).

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

631330623265232 is a wasteful number, since it uses less digits than its factorization.

631330623265232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831292 (or 5831286 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 47.

Adding to 631330623265232 its reverse (232562326033136), we get a palindrome (863892949298368).

The spelling of 631330623265232 in words is "six hundred thirty-one trillion, three hundred thirty billion, six hundred twenty-three million, two hundred sixty-five thousand, two hundred thirty-two".