566116557 has 8 divisors (see below), whose sum is σ = 755149920. Its totient is φ = 377247120.

The previous prime is 566116493. The next prime is 566116591. The reversal of 566116557 is 755611665.

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

It is not a de Polignac number, because 566116557 - 2⁶ = 566116493 is a prime.

It is a super-2 number, since 2×566116557² = 640975912219068498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566116657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32682 + ... + 46907.

It is an arithmetic number, because the mean of its divisors is an integer number (94393740).

Almost surely, 2^566116557 is an apocalyptic number.

It is an amenable number.

566116557 is a deficient number, since it is larger than the sum of its proper divisors (189033363).

566116557 is a wasteful number, since it uses less digits than its factorization.

566116557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81963.

The product of its digits is 189000, while the sum is 42.

The square root of 566116557 is about 23793.2040087080. The cubic root of 566116557 is about 827.2471613397.

The spelling of 566116557 in words is "five hundred sixty-six million, one hundred sixteen thousand, five hundred fifty-seven".