566995969 has 4 divisors (see below), whose sum is σ = 568110420. Its totient is φ = 565881520.

The previous prime is 566995963. The next prime is 566995981. The reversal of 566995969 is 969599665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 525005569 + 41990400 = 22913^2 + 6480^2 .

It is a cyclic number.

It is not a de Polignac number, because 566995969 - 2⁵ = 566995937 is a prime.

It is a super-2 number, since 2×566995969² = 642968857724497922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566995969.

It is not an unprimeable number, because it can be changed into a prime (566995963) 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, 556462 + ... + 557479.

It is an arithmetic number, because the mean of its divisors is an integer number (142027605).

Almost surely, 2^566995969 is an apocalyptic number.

It is an amenable number.

566995969 is a deficient number, since it is larger than the sum of its proper divisors (1114451).

566995969 is a wasteful number, since it uses less digits than its factorization.

566995969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114450.

The product of its digits is 35429400, while the sum is 64.

The square root of 566995969 is about 23811.6771563869. The cubic root of 566995969 is about 827.6752914946.

It can be divided in two parts, 5669959 and 69, that added together give a triangular number (5670028 = T₃₃₆₇).

The spelling of 566995969 in words is "five hundred sixty-six million, nine hundred ninety-five thousand, nine hundred sixty-nine".