566684641 has 4 divisors (see below), whose sum is σ = 566750484. Its totient is φ = 566618800.

The previous prime is 566684597. The next prime is 566684653. The reversal of 566684641 is 146486665.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 245235600 + 321449041 = 15660^2 + 17929^2 .

It is a cyclic number.

It is not a de Polignac number, because 566684641 - 2¹⁷ = 566553569 is a prime.

It is a super-2 number, since 2×566684641² = 642262964690597762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 566684591 and 566684600.

It is not an unprimeable number, because it can be changed into a prime (566688641) 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, 17650 + ... + 38011.

It is an arithmetic number, because the mean of its divisors is an integer number (141687621).

Almost surely, 2^566684641 is an apocalyptic number.

It is an amenable number.

566684641 is a deficient number, since it is larger than the sum of its proper divisors (65843).

566684641 is a wasteful number, since it uses less digits than its factorization.

566684641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65842.

The product of its digits is 829440, while the sum is 46.

The square root of 566684641 is about 23805.1389619973. The cubic root of 566684641 is about 827.5237762083.

The spelling of 566684641 in words is "five hundred sixty-six million, six hundred eighty-four thousand, six hundred forty-one".