12544403055552 has 112 divisors (see below), whose sum is σ = 37015317079200. Its totient is φ = 4165923041280.

The previous prime is 12544403055529. The next prime is 12544403055553. The reversal of 12544403055552 is 25555030444521.

12544403055552 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 4 + 40 + 3 + 0 + 55 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12544403055498 and 12544403055507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544403055553) 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, 13028649 + ... + 13958312.

Almost surely, 2^{12544403055552} is an apocalyptic number.

12544403055552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12544403055552 is an abundant number, since it is smaller than the sum of its proper divisors (24470914023648).

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

12544403055552 is a wasteful number, since it uses less digits than its factorization.

12544403055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26987251 (or 26987235 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

The spelling of 12544403055552 in words is "twelve trillion, five hundred forty-four billion, four hundred three million, fifty-five thousand, five hundred fifty-two".