566666604 has 60 divisors (see below), whose sum is σ = 1693010704. Its totient is φ = 161904096.

The previous prime is 566666603. The next prime is 566666623. The reversal of 566666604 is 406666665.

It is a super-2 number, since 2×566666604² = 642222080177785632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 566666604.

It is not an unprimeable number, because it can be changed into a prime (566666603) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122659 + ... + 127194.

Almost surely, 2^566666604 is an apocalyptic number.

566666604 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

566666604 is an abundant number, since it is smaller than the sum of its proper divisors (1126344100).

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

566666604 is a wasteful number, since it uses less digits than its factorization.

566666604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249876 (or 249865 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The square root of 566666604 is about 23804.7601122129. The cubic root of 566666604 is about 827.5149963663.

The spelling of 566666604 in words is "five hundred sixty-six million, six hundred sixty-six thousand, six hundred four".