5666505505 has 8 divisors (see below), whose sum is σ = 6801878952. Its totient is φ = 4531822848.

The previous prime is 5666505487. The next prime is 5666505521. The reversal of 5666505505 is 5055056665.

It can be written as a sum of positive squares in 4 ways, for example, as 224640144 + 5441865361 = 14988^2 + 73769^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5666505505 - 2⁹ = 5666504993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154474 + ... + 187603.

It is an arithmetic number, because the mean of its divisors is an integer number (850234869).

Almost surely, 2^5666505505 is an apocalyptic number.

It is an amenable number.

5666505505 is a deficient number, since it is larger than the sum of its proper divisors (1135373447).

5666505505 is a wasteful number, since it uses less digits than its factorization.

5666505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345395.

The product of its (nonzero) digits is 675000, while the sum is 43.

The square root of 5666505505 is about 75276.1948095146. The cubic root of 5666505505 is about 1782.8101788774.

The spelling of 5666505505 in words is "five billion, six hundred sixty-six million, five hundred five thousand, five hundred five".