2665565227 has 16 divisors (see below), whose sum is σ = 2948698368. Its totient is φ = 2394030240.

The previous prime is 2665565213. The next prime is 2665565257. The reversal of 2665565227 is 7225655662.

2665565227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665565227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2665565207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137952 + ... + 156082.

It is an arithmetic number, because the mean of its divisors is an integer number (184293648).

Almost surely, 2^2665565227 is an apocalyptic number.

2665565227 is a deficient number, since it is larger than the sum of its proper divisors (283133141).

2665565227 is a wasteful number, since it uses less digits than its factorization.

2665565227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18450.

The product of its digits is 1512000, while the sum is 46.

The square root of 2665565227 is about 51629.1122042593. The cubic root of 2665565227 is about 1386.5315985061.

The spelling of 2665565227 in words is "two billion, six hundred sixty-five million, five hundred sixty-five thousand, two hundred twenty-seven".