616857173504 has 80 divisors (see below), whose sum is σ = 1447983416880. Its totient is φ = 258821160960.

The previous prime is 616857173503. The next prime is 616857173533. The reversal of 616857173504 is 405371758616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616857173503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4139369 + ... + 4285800.

It is an arithmetic number, because the mean of its divisors is an integer number (18099792711).

Almost surely, 2^616857173504 is an apocalyptic number.

616857173504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

616857173504 is an abundant number, since it is smaller than the sum of its proper divisors (831126243376).

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

616857173504 is a wasteful number, since it uses less digits than its factorization.

616857173504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425211 (or 8425195 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 616857173504 in words is "six hundred sixteen billion, eight hundred fifty-seven million, one hundred seventy-three thousand, five hundred four".