101216858256 has 40 divisors (see below), whose sum is σ = 290529872160. Its totient is φ = 33738952608.

The previous prime is 101216858243. The next prime is 101216858363. The reversal of 101216858256 is 652858612101.

101216858256 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 1 + 68 + 582 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117148710 + ... + 117149573.

It is an arithmetic number, because the mean of its divisors is an integer number (7263246804).

Almost surely, 2^101216858256 is an apocalyptic number.

101216858256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

101216858256 is an abundant number, since it is smaller than the sum of its proper divisors (189313013904).

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

101216858256 is a wasteful number, since it uses less digits than its factorization.

101216858256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234298300 (or 234298288 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 101216858256 in words is "one hundred one billion, two hundred sixteen million, eight hundred fifty-eight thousand, two hundred fifty-six".