11549180180 has 96 divisors (see below), whose sum is σ = 26254077696. Its totient is φ = 4251293696.

The previous prime is 11549180179. The next prime is 11549180207. The reversal of 11549180180 is 8108194511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6252017 + ... + 6253863.

It is an arithmetic number, because the mean of its divisors is an integer number (273479976).

Almost surely, 2^11549180180 is an apocalyptic number.

11549180180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11549180180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13127038848).

11549180180 is an abundant number, since it is smaller than the sum of its proper divisors (14704897516).

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

11549180180 is a wasteful number, since it uses less digits than its factorization.

11549180180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 38.

The spelling of 11549180180 in words is "eleven billion, five hundred forty-nine million, one hundred eighty thousand, one hundred eighty".