556555565643 has 16 divisors (see below), whose sum is σ = 925183278336. Its totient is φ = 289119774240.

The previous prime is 556555565597. The next prime is 556555565651. The reversal of 556555565643 is 346565555655.

556555565643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556555565643 - 2¹⁴ = 556555549259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556555565663) 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, 1204665496 + ... + 1204665957.

It is an arithmetic number, because the mean of its divisors is an integer number (57823954896).

Almost surely, 2^556555565643 is an apocalyptic number.

556555565643 is a deficient number, since it is larger than the sum of its proper divisors (368627712693).

556555565643 is a wasteful number, since it uses less digits than its factorization.

556555565643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409331474.

The product of its digits is 202500000, while the sum is 60.

The spelling of 556555565643 in words is "five hundred fifty-six billion, five hundred fifty-five million, five hundred sixty-five thousand, six hundred forty-three".