11888087220856 has 64 divisors (see below), whose sum is σ = 27790867860480. Its totient is φ = 4631633278080.

The previous prime is 11888087220787. The next prime is 11888087220883. The reversal of 11888087220856 is 65802278088811.

It is a happy number.

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, 38405601 + ... + 38713903.

It is an arithmetic number, because the mean of its divisors is an integer number (434232310320).

Almost surely, 2^{11888087220856} is an apocalyptic number.

It is an amenable number.

11888087220856 is an abundant number, since it is smaller than the sum of its proper divisors (15902780639624).

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

11888087220856 is a wasteful number, since it uses less digits than its factorization.

11888087220856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370924 (or 370920 counting only the distinct ones).

The product of its (nonzero) digits is 27525120, while the sum is 64.

The spelling of 11888087220856 in words is "eleven trillion, eight hundred eighty-eight billion, eighty-seven million, two hundred twenty thousand, eight hundred fifty-six".