566685128 has 8 divisors (see below), whose sum is σ = 1062534630. Its totient is φ = 283342560.

The previous prime is 566685121. The next prime is 566685131. The reversal of 566685128 is 821586665.

It is a happy number.

566685128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 534626884 + 32058244 = 23122^2 + 5662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×566685128² = 642264068592752768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (566685121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35417813 + ... + 35417828.

Almost surely, 2^566685128 is an apocalyptic number.

It is an amenable number.

566685128 is a deficient number, since it is larger than the sum of its proper divisors (495849502).

566685128 is a wasteful number, since it uses less digits than its factorization.

566685128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70835647 (or 70835643 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The square root of 566685128 is about 23805.1491908789. The cubic root of 566685128 is about 827.5240132619.

The spelling of 566685128 in words is "five hundred sixty-six million, six hundred eighty-five thousand, one hundred twenty-eight".