12557371584 has 56 divisors (see below), whose sum is σ = 33242554800. Its totient is φ = 4183542784.

The previous prime is 12557371579. The next prime is 12557371621. The reversal of 12557371584 is 48517375521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362242 + ... + 395390.

It is an arithmetic number, because the mean of its divisors is an integer number (593617050).

Almost surely, 2^12557371584 is an apocalyptic number.

It is an amenable number.

12557371584 is an abundant number, since it is smaller than the sum of its proper divisors (20685183216).

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

12557371584 is a wasteful number, since it uses less digits than its factorization.

12557371584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35137 (or 35127 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The spelling of 12557371584 in words is "twelve billion, five hundred fifty-seven million, three hundred seventy-one thousand, five hundred eighty-four".