568949966 has 8 divisors (see below), whose sum is σ = 919073064. Its totient is φ = 262592280.

The previous prime is 568949963. The next prime is 568949971. The reversal of 568949966 is 669949865.

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

It is a super-2 number, since 2×568949966² = 647408127622802312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 568949899 and 568949908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568949963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10941320 + ... + 10941371.

It is an arithmetic number, because the mean of its divisors is an integer number (114884133).

Almost surely, 2^568949966 is an apocalyptic number.

568949966 is a deficient number, since it is larger than the sum of its proper divisors (350123098).

568949966 is a wasteful number, since it uses less digits than its factorization.

568949966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21882706.

The product of its digits is 25194240, while the sum is 62.

The square root of 568949966 is about 23852.6720934993. The cubic root of 568949966 is about 828.6249871075.

It can be divided in two parts, 5689 and 49966, that added together give a palindrome (55655).

The spelling of 568949966 in words is "five hundred sixty-eight million, nine hundred forty-nine thousand, nine hundred sixty-six".