556610605646 has 16 divisors (see below), whose sum is σ = 878882217360. Its totient is φ = 263650645440.

The previous prime is 556610605643. The next prime is 556610605657. The reversal of 556610605646 is 646506016655.

It is a junction number, because it is equal to n+sod(n) for n = 556610605594 and 556610605603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556610605643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429250 + ... + 1776506.

It is an arithmetic number, because the mean of its divisors is an integer number (54930138585).

Almost surely, 2^556610605646 is an apocalyptic number.

556610605646 is a deficient number, since it is larger than the sum of its proper divisors (322271611714).

556610605646 is a wasteful number, since it uses less digits than its factorization.

556610605646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389459.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 556610605646 in words is "five hundred fifty-six billion, six hundred ten million, six hundred five thousand, six hundred forty-six".