566866401 has 4 divisors (see below), whose sum is σ = 755821872. Its totient is φ = 377910932.

The previous prime is 566866397. The next prime is 566866453. The reversal of 566866401 is 104668665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 566866401 - 2² = 566866397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566866471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94477731 + ... + 94477736.

It is an arithmetic number, because the mean of its divisors is an integer number (188955468).

Almost surely, 2^566866401 is an apocalyptic number.

It is an amenable number.

566866401 is a deficient number, since it is larger than the sum of its proper divisors (188955471).

566866401 is a wasteful number, since it uses less digits than its factorization.

566866401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188955470.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 566866401 is about 23808.9563189989. The cubic root of 566866401 is about 827.6122408395.

The spelling of 566866401 in words is "five hundred sixty-six million, eight hundred sixty-six thousand, four hundred one".