556445408844 has 48 divisors (see below), whose sum is σ = 1421946570240. Its totient is φ = 168312037440.

The previous prime is 556445408839. The next prime is 556445408891. The reversal of 556445408844 is 448804544655.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 30219252 + ... + 30237659.

It is an arithmetic number, because the mean of its divisors is an integer number (29623886880).

Almost surely, 2^556445408844 is an apocalyptic number.

It is an amenable number.

556445408844 is an abundant number, since it is smaller than the sum of its proper divisors (865501161396).

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

556445408844 is a wasteful number, since it uses less digits than its factorization.

556445408844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60456990 (or 60456988 counting only the distinct ones).

The product of its (nonzero) digits is 49152000, while the sum is 57.

The spelling of 556445408844 in words is "five hundred fifty-six billion, four hundred forty-five million, four hundred eight thousand, eight hundred forty-four".