556656104544 has 96 divisors (see below), whose sum is σ = 1525472331264. Its totient is φ = 177400903680.

The previous prime is 556656104539. The next prime is 556656104549. The reversal of 556656104544 is 445401656655.

It is an interprime number because it is at equal distance from previous prime (556656104539) and next prime (556656104549).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×556656104544² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556656104549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4713157 + ... + 4829819.

It is an arithmetic number, because the mean of its divisors is an integer number (15890336784).

Almost surely, 2^556656104544 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 556656104544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762736165632).

556656104544 is an abundant number, since it is smaller than the sum of its proper divisors (968816226720).

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

556656104544 is a wasteful number, since it uses less digits than its factorization.

556656104544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118860 (or 118852 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 51.

The spelling of 556656104544 in words is "five hundred fifty-six billion, six hundred fifty-six million, one hundred four thousand, five hundred forty-four".