566656 has 32 divisors (see below), whose sum is σ = 1193400. Its totient is φ = 267264.

The previous prime is 566653. The next prime is 566659. The reversal of 566656 is 656665.

It is an interprime number because it is at equal distance from previous prime (566653) and next prime (566659).

It is a tau number, because it is divible by the number of its divisors (32).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316 + ... + 2548.

2⁵⁶⁶⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596700).

566656 is an abundant number, since it is smaller than the sum of its proper divisors (626744).

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

566656 is a wasteful number, since it uses less digits than its factorization.

566656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 254 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 566656 is about 752.7655677567. The cubic root of 566656 is about 82.7509834587.

Subtracting 566656 from its reverse (656665), we obtain a palindrome (90009).

The spelling of 566656 in words is "five hundred sixty-six thousand, six hundred fifty-six".