5566664 has 16 divisors (see below), whose sum is σ = 10521600. Its totient is φ = 2760912.

The previous prime is 5566663. The next prime is 5566669. The reversal of 5566664 is 4666655.

It is not an unprimeable number, because it can be changed into a prime (5566661) 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, 1724 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (657600).

Almost surely, 2^5566664 is an apocalyptic number.

It is an amenable number.

5566664 is a deficient number, since it is larger than the sum of its proper divisors (4954936).

5566664 is a wasteful number, since it uses less digits than its factorization.

5566664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 5608 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 5566664 is about 2359.3778841042. The cubic root of 5566664 is about 177.2277277768.

Subtracting from 5566664 its reverse (4666655), we obtain a palindrome (900009).

The spelling of 5566664 in words is "five million, five hundred sixty-six thousand, six hundred sixty-four".