11861618832 has 160 divisors (see below), whose sum is σ = 40959283200. Its totient is φ = 3210648192.

The previous prime is 11861618827. The next prime is 11861618917. The reversal of 11861618832 is 23881616811.

11861618832 is a `hidden beast` number, since 1 + 18 + 616 + 18 + 8 + 3 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45768 + ... + 160679.

It is an arithmetic number, because the mean of its divisors is an integer number (255995520).

Almost surely, 2^11861618832 is an apocalyptic number.

11861618832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11861618832 is an abundant number, since it is smaller than the sum of its proper divisors (29097664368).

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

11861618832 is a wasteful number, since it uses less digits than its factorization.

11861618832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206490 (or 206478 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The spelling of 11861618832 in words is "eleven billion, eight hundred sixty-one million, six hundred eighteen thousand, eight hundred thirty-two".