6411164165 has 12 divisors (see below), whose sum is σ = 8949462156. Its totient is φ = 4396226688.

The previous prime is 6411164161. The next prime is 6411164209. The reversal of 6411164165 is 5614611146.

It can be written as a sum of positive squares in 2 ways, for example, as 3037993924 + 3373170241 = 55118^2 + 58079^2 .

It is not a de Polignac number, because 6411164165 - 2² = 6411164161 is a prime.

It is a super-2 number, since 2×6411164165² = 82206051901160294450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411164161) 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, 13083764 + ... + 13084253.

It is an arithmetic number, because the mean of its divisors is an integer number (745788513).

Almost surely, 2^6411164165 is an apocalyptic number.

It is an amenable number.

6411164165 is a deficient number, since it is larger than the sum of its proper divisors (2538297991).

6411164165 is a wasteful number, since it uses less digits than its factorization.

6411164165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26168036 (or 26168029 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 6411164165 is about 80069.7456284207. The cubic root of 6411164165 is about 1857.7144784756.

The spelling of 6411164165 in words is "six billion, four hundred eleven million, one hundred sixty-four thousand, one hundred sixty-five".