556116444 has 72 divisors (see below), whose sum is σ = 1602946800. Its totient is φ = 161044992.

The previous prime is 556116437. The next prime is 556116481. The reversal of 556116444 is 444611655.

556116444 is a `hidden beast` number, since 5 + 5 + 6 + 1 + 1 + 644 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 556116399 and 556116408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26994 + ... + 42905.

It is an arithmetic number, because the mean of its divisors is an integer number (22263150).

Almost surely, 2^556116444 is an apocalyptic number.

It is an amenable number.

556116444 is an abundant number, since it is smaller than the sum of its proper divisors (1046830356).

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

556116444 is a wasteful number, since it uses less digits than its factorization.

556116444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69939 (or 69934 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 556116444 is about 23582.1212786297. The cubic root of 556116444 is about 822.3472523633.

The spelling of 556116444 in words is "five hundred fifty-six million, one hundred sixteen thousand, four hundred forty-four".