556856227984 has 135 divisors (see below), whose sum is σ = 1301243451417. Its totient is φ = 230172534144.

The previous prime is 556856227927. The next prime is 556856228017. The reversal of 556856227984 is 489722658655.

The square root of 556856227984 is 746228.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 292001898384 + 264854329600 = 540372^2 + 514640^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 605936677 + ... + 605937595.

Almost surely, 2^556856227984 is an apocalyptic number.

556856227984 is the 746228-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556856227984

556856227984 is an abundant number, since it is smaller than the sum of its proper divisors (744387223433).

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

556856227984 is an frugal number, since it uses more digits than its factorization.

556856227984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 957 counting only the distinct ones).

The product of its digits is 290304000, while the sum is 67.

The spelling of 556856227984 in words is "five hundred fifty-six billion, eight hundred fifty-six million, two hundred twenty-seven thousand, nine hundred eighty-four".