556645045620 has 24 divisors (see below), whose sum is σ = 1558606127904. Its totient is φ = 148438678816.

The previous prime is 556645045613. The next prime is 556645045639. The reversal of 556645045620 is 26540546655.

It is a self number, because there is not a number n which added to its sum of digits gives 556645045620.

It is a congruent number.

It is an unprimeable number.

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, 4638708654 + ... + 4638708773.

It is an arithmetic number, because the mean of its divisors is an integer number (64941921996).

Almost surely, 2^556645045620 is an apocalyptic number.

It is an amenable number.

556645045620 is an abundant number, since it is smaller than the sum of its proper divisors (1001961082284).

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

556645045620 is a wasteful number, since it uses less digits than its factorization.

556645045620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9277417439 (or 9277417437 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 556645045620 in words is "five hundred fifty-six billion, six hundred forty-five million, forty-five thousand, six hundred twenty".