5666522066 has 4 divisors (see below), whose sum is σ = 8499783102. Its totient is φ = 2833261032.

The previous prime is 5666522047. The next prime is 5666522111. The reversal of 5666522066 is 6602256665.

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

It can be written as a sum of positive squares in only one way, i.e., 5658198841 + 8323225 = 75221^2 + 2885^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1416630515 + ... + 1416630518.

Almost surely, 2^5666522066 is an apocalyptic number.

5666522066 is a deficient number, since it is larger than the sum of its proper divisors (2833261036).

5666522066 is a wasteful number, since it uses less digits than its factorization.

5666522066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833261035.

The product of its (nonzero) digits is 777600, while the sum is 44.

The square root of 5666522066 is about 75276.3048110094. The cubic root of 5666522066 is about 1782.8119156968.

The spelling of 5666522066 in words is "five billion, six hundred sixty-six million, five hundred twenty-two thousand, sixty-six".