566243091 has 12 divisors (see below), whose sum is σ = 818115480. Its totient is φ = 377399040.

The previous prime is 566243071. The next prime is 566243099. The reversal of 566243091 is 190342665.

It is a happy number.

566243091 is a `hidden beast` number, since 566 + 2 + 4 + 3 + 0 + 91 = 666.

It is not a de Polignac number, because 566243091 - 2¹⁰ = 566242067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566243099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56371 + ... + 65651.

It is an arithmetic number, because the mean of its divisors is an integer number (68176290).

Almost surely, 2^566243091 is an apocalyptic number.

566243091 is a deficient number, since it is larger than the sum of its proper divisors (251872389).

566243091 is a wasteful number, since it uses less digits than its factorization.

566243091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16066 (or 16063 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 566243091 is about 23795.8628967306. The cubic root of 566243091 is about 827.3087900469.

The spelling of 566243091 in words is "five hundred sixty-six million, two hundred forty-three thousand, ninety-one".