56565666223 has 8 divisors (see below), whose sum is σ = 61711347456. Its totient is φ = 51420543000.

The previous prime is 56565666217. The next prime is 56565666229. The reversal of 56565666223 is 32266656565.

It is an interprime number because it is at equal distance from previous prime (56565666217) and next prime (56565666229).

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

It is a cyclic number.

It is not a de Polignac number, because 56565666223 - 2⁹ = 56565665711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56565666229) 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, 88698 + ... + 347848.

It is an arithmetic number, because the mean of its divisors is an integer number (7713918432).

Almost surely, 2^56565666223 is an apocalyptic number.

56565666223 is a deficient number, since it is larger than the sum of its proper divisors (5145681233).

56565666223 is a wasteful number, since it uses less digits than its factorization.

56565666223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279005.

The product of its digits is 11664000, while the sum is 52.

The spelling of 56565666223 in words is "fifty-six billion, five hundred sixty-five million, six hundred sixty-six thousand, two hundred twenty-three".