631672275616 has 24 divisors (see below), whose sum is σ = 1246302446004. Its totient is φ = 315151019520.

The previous prime is 631672275607. The next prime is 631672275623. The reversal of 631672275616 is 616572276136.

It can be written as a sum of positive squares in 2 ways, for example, as 552375968400 + 79296307216 = 743220^2 + 281596^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21394965 + ... + 21424468.

Almost surely, 2^631672275616 is an apocalyptic number.

It is an amenable number.

631672275616 is a deficient number, since it is larger than the sum of its proper divisors (614630170388).

631672275616 is a wasteful number, since it uses less digits than its factorization.

631672275616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42819904 (or 42819896 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 52.

The spelling of 631672275616 in words is "six hundred thirty-one billion, six hundred seventy-two million, two hundred seventy-five thousand, six hundred sixteen".