631666540016 has 20 divisors (see below), whose sum is σ = 1253704018224. Its totient is φ = 308130019200.

The previous prime is 631666539997. The next prime is 631666540033. The reversal of 631666540016 is 610045666136.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481452500 + ... + 481453811.

Almost surely, 2^631666540016 is an apocalyptic number.

It is an amenable number.

631666540016 is a deficient number, since it is larger than the sum of its proper divisors (622037478208).

631666540016 is a wasteful number, since it uses less digits than its factorization.

631666540016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962906360 (or 962906354 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 631666540016 in words is "six hundred thirty-one billion, six hundred sixty-six million, five hundred forty thousand, sixteen".