556493508361 has 32 divisors (see below), whose sum is σ = 679688755200. Its totient is φ = 445029552000.

The previous prime is 556493508343. The next prime is 556493508383. The reversal of 556493508361 is 163805394655.

It is not a de Polignac number, because 556493508361 - 2³³ = 547903573769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556493508331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2877436 + ... + 3064738.

It is an arithmetic number, because the mean of its divisors is an integer number (21240273600).

Almost surely, 2^556493508361 is an apocalyptic number.

It is an amenable number.

556493508361 is a deficient number, since it is larger than the sum of its proper divisors (123195246839).

556493508361 is a wasteful number, since it uses less digits than its factorization.

556493508361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187669.

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 556493508361 in words is "five hundred fifty-six billion, four hundred ninety-three million, five hundred eight thousand, three hundred sixty-one".