12557050320 has 80 divisors (see below), whose sum is σ = 39876322752. Its totient is φ = 3266872320.

The previous prime is 12557050313. The next prime is 12557050321. The reversal of 12557050320 is 2305075521.

12557050320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12557050321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628222 + ... + 647901.

Almost surely, 2^12557050320 is an apocalyptic number.

12557050320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12557050320 is an abundant number, since it is smaller than the sum of its proper divisors (27319272432).

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

12557050320 is a wasteful number, since it uses less digits than its factorization.

12557050320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276180 (or 1276174 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The spelling of 12557050320 in words is "twelve billion, five hundred fifty-seven million, fifty thousand, three hundred twenty".