11808636180 has 48 divisors (see below), whose sum is σ = 36070017984. Its totient is φ = 2862699520.

The previous prime is 11808636137. The next prime is 11808636209. The reversal of 11808636180 is 8163680811.

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, 8945277 + ... + 8946596.

It is an arithmetic number, because the mean of its divisors is an integer number (751458708).

Almost surely, 2^11808636180 is an apocalyptic number.

11808636180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11808636180 is an abundant number, since it is smaller than the sum of its proper divisors (24261381804).

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

11808636180 is a wasteful number, since it uses less digits than its factorization.

11808636180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891896 (or 17891894 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 11808636180 in words is "eleven billion, eight hundred eight million, six hundred thirty-six thousand, one hundred eighty".