855216845976 has 64 divisors (see below), whose sum is σ = 2148166706400. Its totient is φ = 283725324288.

The previous prime is 855216845969. The next prime is 855216845999. The reversal of 855216845976 is 679548612558.

It is a super-2 number, since 2×855216845976² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 4509156 + ... + 4694988.

Almost surely, 2^855216845976 is an apocalyptic number.

It is an amenable number.

855216845976 is an abundant number, since it is smaller than the sum of its proper divisors (1292949860424).

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

855216845976 is a wasteful number, since it uses less digits than its factorization.

855216845976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186748 (or 186744 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 66.

The spelling of 855216845976 in words is "eight hundred fifty-five billion, two hundred sixteen million, eight hundred forty-five thousand, nine hundred seventy-six".