556223646322655 has 8 divisors (see below), whose sum is σ = 669053811161184. Its totient is φ = 443921960008800.

The previous prime is 556223646322579. The next prime is 556223646322657.

556223646322655 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556223646322655 - 2²⁰ = 556223645274079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556223646322657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132119628851 + ... + 132119633060.

It is an arithmetic number, because the mean of its divisors is an integer number (83631726395148).

Almost surely, 2^{556223646322655} is an apocalyptic number.

556223646322655 is a deficient number, since it is larger than the sum of its proper divisors (112830164838529).

556223646322655 is a wasteful number, since it uses less digits than its factorization.

556223646322655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264239262337.

The product of its digits is 466560000, while the sum is 62.

The spelling of 556223646322655 in words is "five hundred fifty-six trillion, two hundred twenty-three billion, six hundred forty-six million, three hundred twenty-two thousand, six hundred fifty-five".