65165211 has 6 divisors (see below), whose sum is σ = 94127540. Its totient is φ = 43443468.

The previous prime is 65165197. The next prime is 65165227. The reversal of 65165211 is 11256156.

It is a happy number.

65165211 is a `hidden beast` number, since 6 + 5 + 1 + 652 + 1 + 1 = 666.

It is not a de Polignac number, because 65165211 - 2⁷ = 65165083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65165311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3620281 + ... + 3620298.

Almost surely, 2^65165211 is an apocalyptic number.

65165211 is a deficient number, since it is larger than the sum of its proper divisors (28962329).

65165211 is a wasteful number, since it uses less digits than its factorization.

65165211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240585 (or 7240582 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 65165211 is about 8072.4971972742. The cubic root of 65165211 is about 402.4129379742.

The spelling of 65165211 in words is "sixty-five million, one hundred sixty-five thousand, two hundred eleven".