556961655296 has 80 divisors (see below), whose sum is σ = 1116270265440. Its totient is φ = 277622968320.

The previous prime is 556961655227. The next prime is 556961655337. The reversal of 556961655296 is 692556169655.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

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, 352729835 + ... + 352731413.

It is an arithmetic number, because the mean of its divisors is an integer number (13953378318).

Almost surely, 2^556961655296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556961655296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558135132720).

556961655296 is an abundant number, since it is smaller than the sum of its proper divisors (559308610144).

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

556961655296 is an equidigital number, since it uses as much as digits as its factorization.

556961655296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3269 counting only the distinct ones).

The product of its digits is 131220000, while the sum is 65.

The spelling of 556961655296 in words is "five hundred fifty-six billion, nine hundred sixty-one million, six hundred fifty-five thousand, two hundred ninety-six".