12399571180 has 48 divisors (see below), whose sum is σ = 28521551520. Its totient is φ = 4507102208.

The previous prime is 12399571153. The next prime is 12399571183. The reversal of 12399571180 is 8117599321.

It is a self number, because there is not a number n which added to its sum of digits gives 12399571180.

It is not an unprimeable number, because it can be changed into a prime (12399571183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618922 + ... + 638641.

It is an arithmetic number, because the mean of its divisors is an integer number (594198990).

Almost surely, 2^12399571180 is an apocalyptic number.

12399571180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12399571180 is an abundant number, since it is smaller than the sum of its proper divisors (16121980340).

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

12399571180 is a wasteful number, since it uses less digits than its factorization.

12399571180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257618 (or 1257616 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 12399571180 in words is "twelve billion, three hundred ninety-nine million, five hundred seventy-one thousand, one hundred eighty".