556296747692656 has 120 divisors (see below), whose sum is σ = 1194007707147024. Its totient is φ = 250193641420800.

The previous prime is 556296747692641. The next prime is 556296747692687. The reversal of 556296747692656 is 656296747692655.

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, 169166506 + ... + 172423606.

Almost surely, 2^{556296747692656} 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 556296747692656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597003853573512).

556296747692656 is an abundant number, since it is smaller than the sum of its proper divisors (637710959454368).

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

556296747692656 is a wasteful number, since it uses less digits than its factorization.

556296747692656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258359 (or 3258330 counting only the distinct ones).

The product of its digits is 61725888000, while the sum is 85.

Subtracting 556296747692656 from its reverse (656296747692655), we obtain a palindrome (99999999999999).

The spelling of 556296747692656 in words is "five hundred fifty-six trillion, two hundred ninety-six billion, seven hundred forty-seven million, six hundred ninety-two thousand, six hundred fifty-six".