566566665665 has 64 divisors (see below), whose sum is σ = 916869058560. Its totient is φ = 324579536640.

The previous prime is 566566665641. The next prime is 566566665779.

566566665665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 566566665665 - 2¹² = 566566661569 is a prime.

It is a super-3 number, since 3×566566665665³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 566566665595 and 566566665604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 886796 + ... + 1385474.

It is an arithmetic number, because the mean of its divisors is an integer number (14326079040).

Almost surely, 2^566566665665 is an apocalyptic number.

566566665665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

566566665665 is a deficient number, since it is larger than the sum of its proper divisors (350302392895).

566566665665 is a wasteful number, since it uses less digits than its factorization.

566566665665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498942.

The product of its digits is 1049760000, while the sum is 68.

The spelling of 566566665665 in words is "five hundred sixty-six billion, five hundred sixty-six million, six hundred sixty-five thousand, six hundred sixty-five".