102500856612 has 72 divisors (see below), whose sum is σ = 323033011392. Its totient is φ = 26623598400.

The previous prime is 102500856587. The next prime is 102500856637. The reversal of 102500856612 is 216658005201.

102500856612 is a `hidden beast` number, since 1 + 0 + 2 + 500 + 85 + 66 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (102500856587) and next prime (102500856637).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18485839 + ... + 18491382.

Almost surely, 2^102500856612 is an apocalyptic number.

102500856612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102500856612 is an abundant number, since it is smaller than the sum of its proper divisors (220532154780).

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

102500856612 is a wasteful number, since it uses less digits than its factorization.

102500856612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36977249 (or 36977244 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 102500856612 in words is "one hundred two billion, five hundred million, eight hundred fifty-six thousand, six hundred twelve".