566424669665 has 4 divisors (see below), whose sum is σ = 679709603604. Its totient is φ = 453139735728.

The previous prime is 566424669653. The next prime is 566424669677. The reversal of 566424669665 is 566966424665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566966424665 = 5 ⋅113393284933.

It is an interprime number because it is at equal distance from previous prime (566424669653) and next prime (566424669677).

It can be written as a sum of positive squares in 2 ways, for example, as 353801315344 + 212623354321 = 594812^2 + 461111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566424669665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56642466962 + ... + 56642466971.

It is an arithmetic number, because the mean of its divisors is an integer number (169927400901).

Almost surely, 2^566424669665 is an apocalyptic number.

It is an amenable number.

566424669665 is a deficient number, since it is larger than the sum of its proper divisors (113284933939).

566424669665 is a wasteful number, since it uses less digits than its factorization.

566424669665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113284933938.

The product of its digits is 335923200, while the sum is 65.

The spelling of 566424669665 in words is "five hundred sixty-six billion, four hundred twenty-four million, six hundred sixty-nine thousand, six hundred sixty-five".