5666665005 has 12 divisors (see below), whose sum is σ = 9822219420. Its totient is φ = 3022221312.

The previous prime is 5666665003. The next prime is 5666665021. The reversal of 5666665005 is 5005666665.

5666665005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3923017956 + 1743647049 = 62634^2 + 41757^2 .

It is not a de Polignac number, because 5666665005 - 2¹ = 5666665003 is a prime.

It is a super-2 number, since 2×5666665005² = 64222184557783300050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 125925889 = 5666665005 / (5 + 6 + 6 + 6 + 6 + 6 + 5 + 0 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666665003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62962900 + ... + 62962989.

It is an arithmetic number, because the mean of its divisors is an integer number (818518285).

Almost surely, 2^5666665005 is an apocalyptic number.

It is an amenable number.

5666665005 is a deficient number, since it is larger than the sum of its proper divisors (4155554415).

5666665005 is a wasteful number, since it uses less digits than its factorization.

5666665005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125925900 (or 125925897 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 5666665005 is about 75277.2542339318. The cubic root of 5666665005 is about 1782.8269061505.

The spelling of 5666665005 in words is "five billion, six hundred sixty-six million, six hundred sixty-five thousand, five".