566246661 has 8 divisors (see below), whose sum is σ = 772553760. Its totient is φ = 368718672.

The previous prime is 566246633. The next prime is 566246699. The reversal of 566246661 is 166642665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 566246661 - 2⁷ = 566246533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566246621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194626 + ... + 2194883.

It is an arithmetic number, because the mean of its divisors is an integer number (96569220).

Almost surely, 2^566246661 is an apocalyptic number.

It is an amenable number.

566246661 is a deficient number, since it is larger than the sum of its proper divisors (206307099).

566246661 is a wasteful number, since it uses less digits than its factorization.

566246661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389555.

The product of its digits is 311040, while the sum is 42.

The square root of 566246661 is about 23795.9379096517. The cubic root of 566246661 is about 827.3105286913.

The spelling of 566246661 in words is "five hundred sixty-six million, two hundred forty-six thousand, six hundred sixty-one".