566545665 has 32 divisors (see below), whose sum is σ = 1063975680. Its totient is φ = 251990784.

The previous prime is 566545619. The next prime is 566545687.

566545665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 566545665 - 2¹³ = 566537473 is a prime.

It is a super-3 number, since 3×566545665³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69030 + ... + 76799.

It is an arithmetic number, because the mean of its divisors is an integer number (33249240).

Almost surely, 2^566545665 is an apocalyptic number.

It is an amenable number.

566545665 is a deficient number, since it is larger than the sum of its proper divisors (497430015).

566545665 is a wasteful number, since it uses less digits than its factorization.

566545665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145881.

The product of its digits is 3240000, while the sum is 48.

The square root of 566545665 is about 23802.2197494267. The cubic root of 566545665 is about 827.4561222677.

The spelling of 566545665 in words is "five hundred sixty-six million, five hundred forty-five thousand, six hundred sixty-five".