556116636 has 12 divisors (see below), whose sum is σ = 1297605512. Its totient is φ = 185372208.

The previous prime is 556116611. The next prime is 556116641. The reversal of 556116636 is 636611655.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 556116594 and 556116603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23171515 + ... + 23171538.

Almost surely, 2^556116636 is an apocalyptic number.

It is an amenable number.

556116636 is an abundant number, since it is smaller than the sum of its proper divisors (741488876).

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

556116636 is a wasteful number, since it uses less digits than its factorization.

556116636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46343060 (or 46343058 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 556116636 is about 23582.1253495100. The cubic root of 556116636 is about 822.3473470021.

The spelling of 556116636 in words is "five hundred fifty-six million, one hundred sixteen thousand, six hundred thirty-six".