631110658265472 has 128 divisors (see below), whose sum is σ = 2090041790457600. Its totient is φ = 163924846295040.

The previous prime is 631110658265411. The next prime is 631110658265687. The reversal of 631110658265472 is 274562856011136.

It is a tau number, because it is divible by the number of its divisors (128).

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, 10672160947 + ... + 10672220082.

It is an arithmetic number, because the mean of its divisors is an integer number (16328451487950).

Almost surely, 2^{631110658265472} is an apocalyptic number.

It is an amenable number.

631110658265472 is an abundant number, since it is smaller than the sum of its proper divisors (1458931132192128).

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

631110658265472 is a wasteful number, since it uses less digits than its factorization.

631110658265472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344381064 (or 21344381052 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 631110658265472 in words is "six hundred thirty-one trillion, one hundred ten billion, six hundred fifty-eight million, two hundred sixty-five thousand, four hundred seventy-two".