5050566665 has 12 divisors (see below), whose sum is σ = 6335648004. Its totient is φ = 3864779424.

The previous prime is 5050566649. The next prime is 5050566721. The reversal of 5050566665 is 5666650505.

It can be written as a sum of positive squares in 2 ways, for example, as 1113757129 + 3936809536 = 33373^2 + 62744^2 .

It is not a de Polignac number, because 5050566665 - 2⁴ = 5050566649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952094 + ... + 957383.

It is an arithmetic number, because the mean of its divisors is an integer number (527970667).

Almost surely, 2^5050566665 is an apocalyptic number.

It is an amenable number.

5050566665 is a deficient number, since it is larger than the sum of its proper divisors (1285081339).

5050566665 is a wasteful number, since it uses less digits than its factorization.

5050566665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909528 (or 1909505 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 5050566665 is about 71067.3389469452. The cubic root of 5050566665 is about 1715.7211410208.

The spelling of 5050566665 in words is "five billion, fifty million, five hundred sixty-six thousand, six hundred sixty-five".