566161566 has 8 divisors (see below), whose sum is σ = 1132323144. Its totient is φ = 188720520.

The previous prime is 566161553. The next prime is 566161619. The reversal of 566161566 is 665161665.

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

566161566 is an admirable number.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 47180125 + ... + 47180136.

It is an arithmetic number, because the mean of its divisors is an integer number (141540393).

Almost surely, 2^566161566 is an apocalyptic number.

566161566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566161566 is a wasteful number, since it uses less digits than its factorization.

566161566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94360266.

The product of its digits is 194400, while the sum is 42.

The square root of 566161566 is about 23794.1498272159. The cubic root of 566161566 is about 827.2690841401.

Subtracting 566161566 from its reverse (665161665), we obtain a palindrome (99000099).

The spelling of 566161566 in words is "five hundred sixty-six million, one hundred sixty-one thousand, five hundred sixty-six".