556128996 has 24 divisors (see below), whose sum is σ = 1303459584. Its totient is φ = 184544160.

The previous prime is 556128959. The next prime is 556129001. The reversal of 556128996 is 699821655.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101235 + ... + 106586.

It is an arithmetic number, because the mean of its divisors is an integer number (54310816).

Almost surely, 2^556128996 is an apocalyptic number.

It is an amenable number.

556128996 is an abundant number, since it is smaller than the sum of its proper divisors (747330588).

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

556128996 is a wasteful number, since it uses less digits than its factorization.

556128996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208051 (or 208049 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 556128996 is about 23582.3874109472. The cubic root of 556128996 is about 822.3534393319.

The spelling of 556128996 in words is "five hundred fifty-six million, one hundred twenty-eight thousand, nine hundred ninety-six".