12554660544 has 56 divisors (see below), whose sum is σ = 33227192880. Its totient is φ = 4183670784.

The previous prime is 12554660543. The next prime is 12554660549. The reversal of 12554660544 is 44506645521.

It is a junction number, because it is equal to n+sod(n) for n = 12554660496 and 12554660505.

It is not an unprimeable number, because it can be changed into a prime (12554660543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859252 + ... + 873740.

It is an arithmetic number, because the mean of its divisors is an integer number (593342730).

Almost surely, 2^12554660544 is an apocalyptic number.

It is an amenable number.

12554660544 is an abundant number, since it is smaller than the sum of its proper divisors (20672532336).

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

12554660544 is a wasteful number, since it uses less digits than its factorization.

12554660544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19017 (or 19007 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 12554660544 in words is "twelve billion, five hundred fifty-four million, six hundred sixty thousand, five hundred forty-four".