566066609 has 2 divisors, whose sum is σ = 566066610. Its totient is φ = 566066608.

The previous prime is 566066597. The next prime is 566066621. The reversal of 566066609 is 906660665.

It is a balanced prime because it is at equal distance from previous prime (566066597) and next prime (566066621).

It can be written as a sum of positive squares in only one way, i.e., 299463025 + 266603584 = 17305^2 + 16328^2 .

It is a cyclic number.

It is not a de Polignac number, because 566066609 - 2²⁸ = 297631153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566066609.

It is not a weakly prime, because it can be changed into another prime (566066909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283033304 + 283033305.

It is an arithmetic number, because the mean of its divisors is an integer number (283033305).

Almost surely, 2^566066609 is an apocalyptic number.

It is an amenable number.

566066609 is a deficient number, since it is larger than the sum of its proper divisors (1).

566066609 is an equidigital number, since it uses as much as digits as its factorization.

566066609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 566066609 is about 23792.1543581072. The cubic root of 566066609 is about 827.2228315111. Note that the first 3 decimals are identical.

The spelling of 566066609 in words is "five hundred sixty-six million, sixty-six thousand, six hundred nine".