566644066 has 8 divisors (see below), whose sum is σ = 850089564. Its totient is φ = 283280880.

The previous prime is 566644063. The next prime is 566644081. The reversal of 566644066 is 660446665.

It can be written as a sum of positive squares in 2 ways, for example, as 563825025 + 2819041 = 23745^2 + 1679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (566644061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276 + ... + 33688.

Almost surely, 2^566644066 is an apocalyptic number.

566644066 is a deficient number, since it is larger than the sum of its proper divisors (283445498).

566644066 is a wasteful number, since it uses less digits than its factorization.

566644066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41156.

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 566644066 is about 23804.2867147915. The cubic root of 566644066 is about 827.5040253179.

The spelling of 566644066 in words is "five hundred sixty-six million, six hundred forty-four thousand, sixty-six".