633866090172 has 24 divisors (see below), whose sum is σ = 1690309574016. Its totient is φ = 181104597168.

The previous prime is 633866090131. The next prime is 633866090191. The reversal of 633866090172 is 271090668336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773012358 + ... + 3773012525.

It is an arithmetic number, because the mean of its divisors is an integer number (70429565584).

Almost surely, 2^633866090172 is an apocalyptic number.

It is an amenable number.

633866090172 is an abundant number, since it is smaller than the sum of its proper divisors (1056443483844).

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

633866090172 is a wasteful number, since it uses less digits than its factorization.

633866090172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546024897 (or 7546024895 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 633866090172 in words is "six hundred thirty-three billion, eight hundred sixty-six million, ninety thousand, one hundred seventy-two".