12156610180 has 96 divisors (see below), whose sum is σ = 30229032960. Its totient is φ = 4048289280.

The previous prime is 12156610163. The next prime is 12156610183. The reversal of 12156610180 is 8101665121.

It is not an unprimeable number, because it can be changed into a prime (12156610183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346486 + ... + 379954.

It is an arithmetic number, because the mean of its divisors is an integer number (314885760).

Almost surely, 2^12156610180 is an apocalyptic number.

12156610180 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 12156610180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15114516480).

12156610180 is an abundant number, since it is smaller than the sum of its proper divisors (18072422780).

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

12156610180 is a wasteful number, since it uses less digits than its factorization.

12156610180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33629 (or 33627 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 12156610180 in words is "twelve billion, one hundred fifty-six million, six hundred ten thousand, one hundred eighty".