566566161 has 16 divisors (see below), whose sum is σ = 864432000. Its totient is φ = 323342208.

The previous prime is 566566141. The next prime is 566566171. The reversal of 566566161 is 161665665.

It is not a de Polignac number, because 566566161 - 2⁵ = 566566129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566566141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315 + ... + 33663.

It is an arithmetic number, because the mean of its divisors is an integer number (54027000).

Almost surely, 2^566566161 is an apocalyptic number.

It is an amenable number.

566566161 is a deficient number, since it is larger than the sum of its proper divisors (297865839).

566566161 is a wasteful number, since it uses less digits than its factorization.

566566161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34168.

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

The square root of 566566161 is about 23802.6502936123. The cubic root of 566566161 is about 827.4661004784.

The spelling of 566566161 in words is "five hundred sixty-six million, five hundred sixty-six thousand, one hundred sixty-one".