631380066100 has 36 divisors (see below), whose sum is σ = 1565822565664. Its totient is φ = 216473165280.

The previous prime is 631380066089. The next prime is 631380066131. The reversal of 631380066100 is 1660083136.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450985062 + ... + 450986461.

Almost surely, 2^631380066100 is an apocalyptic number.

It is an amenable number.

631380066100 is an abundant number, since it is smaller than the sum of its proper divisors (934442499564).

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

631380066100 is a wasteful number, since it uses less digits than its factorization.

631380066100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901971544 (or 901971537 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 631380066100 in words is "six hundred thirty-one billion, three hundred eighty million, sixty-six thousand, one hundred".