12556411200 has 126 divisors (see below), whose sum is σ = 44628501294. Its totient is φ = 3348372480.

The previous prime is 12556411163. The next prime is 12556411223. The reversal of 12556411200 is 211465521.

12556411200 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 641 + 12 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 378847296 + 12177563904 = 19464^2 + 110352^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 421587 + ... + 450386.

Almost surely, 2^12556411200 is an apocalyptic number.

12556411200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12556411200 is an abundant number, since it is smaller than the sum of its proper divisors (32072090094).

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

12556411200 is a wasteful number, since it uses less digits than its factorization.

12556411200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872001 (or 871983 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 12556411200 its reverse (211465521), we get a palindrome (12767876721).

The spelling of 12556411200 in words is "twelve billion, five hundred fifty-six million, four hundred eleven thousand, two hundred".