566666667 has 24 divisors (see below), whose sum is σ = 937655264. Its totient is φ = 323046144.

The previous prime is 566666651. The next prime is 566666677. The reversal of 566666667 is 766666665.

It is a happy number.

566666667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 566666667 - 2⁴ = 566666651 is a prime.

It is a super-2 number, since 2×566666667² = 642222222977777778, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (566666677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16893 + ... + 37665.

Almost surely, 2^566666667 is an apocalyptic number.

566666667 is a deficient number, since it is larger than the sum of its proper divisors (370988597).

566666667 is a wasteful number, since it uses less digits than its factorization.

566666667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219 (or 21216 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The square root of 566666667 is about 23804.7614354776. The cubic root of 566666667 is about 827.5150270331.

The spelling of 566666667 in words is "five hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-seven".