556172838812 has 12 divisors (see below), whose sum is σ = 973897044120. Its totient is φ = 277916540496.

The previous prime is 556172838811. The next prime is 556172838829. The reversal of 556172838812 is 218838271655.

556172838812 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 not an unprimeable number, because it can be changed into a prime (556172838811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42462362 + ... + 42475457.

It is an arithmetic number, because the mean of its divisors is an integer number (81158087010).

Almost surely, 2^556172838812 is an apocalyptic number.

It is an amenable number.

556172838812 is a deficient number, since it is larger than the sum of its proper divisors (417724205308).

556172838812 is a wasteful number, since it uses less digits than its factorization.

556172838812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84939460 (or 84939458 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 56.

The spelling of 556172838812 in words is "five hundred fifty-six billion, one hundred seventy-two million, eight hundred thirty-eight thousand, eight hundred twelve".