566729961 has 8 divisors (see below), whose sum is σ = 863588544. Its totient is φ = 323845680.

The previous prime is 566729957. The next prime is 566729971. The reversal of 566729961 is 169927665.

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

It is not a de Polignac number, because 566729961 - 2² = 566729957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (566729951) 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, 13493550 + ... + 13493591.

It is an arithmetic number, because the mean of its divisors is an integer number (107948568).

Almost surely, 2^566729961 is an apocalyptic number.

It is an amenable number.

566729961 is a deficient number, since it is larger than the sum of its proper divisors (296858583).

566729961 is a wasteful number, since it uses less digits than its factorization.

566729961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26987151.

The product of its digits is 1224720, while the sum is 51.

The square root of 566729961 is about 23806.0908382708. The cubic root of 566729961 is about 827.5458357308.

The spelling of 566729961 in words is "five hundred sixty-six million, seven hundred twenty-nine thousand, nine hundred sixty-one".