566166365 has 4 divisors (see below), whose sum is σ = 679399644. Its totient is φ = 452933088.

The previous prime is 566166353. The next prime is 566166401. The reversal of 566166365 is 563661665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 357739396 + 208426969 = 18914^2 + 14437^2 .

It is a cyclic number.

It is not a de Polignac number, because 566166365 - 2⁸ = 566166109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 56616632 + ... + 56616641.

It is an arithmetic number, because the mean of its divisors is an integer number (169849911).

Almost surely, 2^566166365 is an apocalyptic number.

It is an amenable number.

566166365 is a deficient number, since it is larger than the sum of its proper divisors (113233279).

566166365 is a wasteful number, since it uses less digits than its factorization.

566166365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113233278.

The product of its digits is 583200, while the sum is 44.

The square root of 566166365 is about 23794.2506711180. The cubic root of 566166365 is about 827.2714215489.

The spelling of 566166365 in words is "five hundred sixty-six million, one hundred sixty-six thousand, three hundred sixty-five".