556612520123 has 16 divisors (see below), whose sum is σ = 612255559680. Its totient is φ = 501813194400.

The previous prime is 556612520039. The next prime is 556612520129. The reversal of 556612520123 is 321025216655.

It is a cyclic number.

It is not a de Polignac number, because 556612520123 - 2¹² = 556612516027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556612520129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3242588 + ... + 3409926.

It is an arithmetic number, because the mean of its divisors is an integer number (38265972480).

Almost surely, 2^556612520123 is an apocalyptic number.

556612520123 is a deficient number, since it is larger than the sum of its proper divisors (55643039557).

556612520123 is a wasteful number, since it uses less digits than its factorization.

556612520123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169858.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 556612520123 its reverse (321025216655), we get a palindrome (877637736778).

The spelling of 556612520123 in words is "five hundred fifty-six billion, six hundred twelve million, five hundred twenty thousand, one hundred twenty-three".