556623670557 has 16 divisors (see below), whose sum is σ = 743879174400. Its totient is φ = 370226129472.

The previous prime is 556623670541. The next prime is 556623670591. The reversal of 556623670557 is 755076326655.

It is a happy number.

It is not a de Polignac number, because 556623670557 - 2⁴ = 556623670541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556623670497 and 556623670506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556623670957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632819 + ... + 2836367.

It is an arithmetic number, because the mean of its divisors is an integer number (46492448400).

Almost surely, 2^556623670557 is an apocalyptic number.

It is an amenable number.

556623670557 is a deficient number, since it is larger than the sum of its proper divisors (187255503843).

556623670557 is a wasteful number, since it uses less digits than its factorization.

556623670557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205652.

The product of its (nonzero) digits is 39690000, while the sum is 57.

The spelling of 556623670557 in words is "five hundred fifty-six billion, six hundred twenty-three million, six hundred seventy thousand, five hundred fifty-seven".