11801179180 has 24 divisors (see below), whose sum is σ = 28322830368. Its totient is φ = 4046118528.

The previous prime is 11801179171. The next prime is 11801179213. The reversal of 11801179180 is 8197110811.

It is a happy number.

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, 42146929 + ... + 42147208.

It is an arithmetic number, because the mean of its divisors is an integer number (1180117932).

Almost surely, 2^11801179180 is an apocalyptic number.

11801179180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11801179180 is an abundant number, since it is smaller than the sum of its proper divisors (16521651188).

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

11801179180 is a wasteful number, since it uses less digits than its factorization.

11801179180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84294153 (or 84294151 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 37.

Adding to 11801179180 its reverse (8197110811), we get a palindrome (19998289991).

The spelling of 11801179180 in words is "eleven billion, eight hundred one million, one hundred seventy-nine thousand, one hundred eighty".