632686998816 has 96 divisors (see below), whose sum is σ = 1854999014400. Its totient is φ = 209791445760.

The previous prime is 632686998761. The next prime is 632686998863. The reversal of 632686998816 is 618899686236.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

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, 1751931 + ... + 2081978.

It is an arithmetic number, because the mean of its divisors is an integer number (19322906400).

Almost surely, 2^632686998816 is an apocalyptic number.

It is an amenable number.

632686998816 is an abundant number, since it is smaller than the sum of its proper divisors (1222312015584).

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

632686998816 is a wasteful number, since it uses less digits than its factorization.

632686998816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834119 (or 3834105 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 72.

The spelling of 632686998816 in words is "six hundred thirty-two billion, six hundred eighty-six million, nine hundred ninety-eight thousand, eight hundred sixteen".