2165669227 has 2 divisors, whose sum is σ = 2165669228. Its totient is φ = 2165669226.

The previous prime is 2165669201. The next prime is 2165669249. The reversal of 2165669227 is 7229665612.

2165669227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2165669227 - 2³¹ = 18185579 is a prime.

It is not a weakly prime, because it can be changed into another prime (2165639227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082834613 + 1082834614.

It is an arithmetic number, because the mean of its divisors is an integer number (1082834614).

Almost surely, 2^2165669227 is an apocalyptic number.

2165669227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165669227 is an equidigital number, since it uses as much as digits as its factorization.

2165669227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 2165669227 is about 46536.7513584694. The cubic root of 2165669227 is about 1293.7907500463.

The spelling of 2165669227 in words is "two billion, one hundred sixty-five million, six hundred sixty-nine thousand, two hundred twenty-seven".