12557650896736 has 72 divisors (see below), whose sum is σ = 27176443639632. Its totient is φ = 5707663315200.

The previous prime is 12557650896709. The next prime is 12557650896767. The reversal of 12557650896736 is 63769805675521.

It is a happy number.

12557650896736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67019821 + ... + 67206931.

It is an arithmetic number, because the mean of its divisors is an integer number (377450606106).

Almost surely, 2^{12557650896736} is an apocalyptic number.

12557650896736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12557650896736 is an abundant number, since it is smaller than the sum of its proper divisors (14618792742896).

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

12557650896736 is a wasteful number, since it uses less digits than its factorization.

12557650896736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204476 (or 204457 counting only the distinct ones).

The product of its (nonzero) digits is 571536000, while the sum is 70.

The spelling of 12557650896736 in words is "twelve trillion, five hundred fifty-seven billion, six hundred fifty million, eight hundred ninety-six thousand, seven hundred thirty-six".