616800631338 has 24 divisors (see below), whose sum is σ = 1336656756708. Its totient is φ = 205560919872.

The previous prime is 616800631313. The next prime is 616800631361. The reversal of 616800631338 is 833136008616.

616800631338 is a `hidden beast` number, since 6 + 1 + 6 + 8 + 0 + 0 + 631 + 3 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 573129244809 + 43671386529 = 757053^2 + 208977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 616800631293 and 616800631302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3177331 + ... + 3365862.

Almost surely, 2^616800631338 is an apocalyptic number.

616800631338 is an abundant number, since it is smaller than the sum of its proper divisors (719856125370).

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

616800631338 is a wasteful number, since it uses less digits than its factorization.

616800631338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548438 (or 6548435 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 616800631338 in words is "six hundred sixteen billion, eight hundred million, six hundred thirty-one thousand, three hundred thirty-eight".