556122222779 has 4 divisors (see below), whose sum is σ = 556981763184. Its totient is φ = 555262682376.

The previous prime is 556122222767. The next prime is 556122222809. The reversal of 556122222779 is 977222221655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556122222779 - 2¹⁶ = 556122157243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556122222379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429769232 + ... + 429770525.

It is an arithmetic number, because the mean of its divisors is an integer number (139245440796).

Almost surely, 2^556122222779 is an apocalyptic number.

556122222779 is a deficient number, since it is larger than the sum of its proper divisors (859540405).

556122222779 is an equidigital number, since it uses as much as digits as its factorization.

556122222779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859540404.

The product of its digits is 2116800, while the sum is 50.

The spelling of 556122222779 in words is "five hundred fifty-six billion, one hundred twenty-two million, two hundred twenty-two thousand, seven hundred seventy-nine".