6165565165 has 16 divisors (see below), whose sum is σ = 7457868288. Its totient is φ = 4893119296.

The previous prime is 6165565141. The next prime is 6165565171. The reversal of 6165565165 is 5615655616.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6165565165 is a prime.

It is a super-2 number, since 2×6165565165² = 76028387607722954450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396324 + ... + 411586.

It is an arithmetic number, because the mean of its divisors is an integer number (466116768).

Almost surely, 2^6165565165 is an apocalyptic number.

It is an amenable number.

6165565165 is a deficient number, since it is larger than the sum of its proper divisors (1292303123).

6165565165 is a wasteful number, since it uses less digits than its factorization.

6165565165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15908.

The product of its digits is 810000, while the sum is 46.

The square root of 6165565165 is about 78521.1128614464. The cubic root of 6165565165 is about 1833.6831635638.

The spelling of 6165565165 in words is "six billion, one hundred sixty-five million, five hundred sixty-five thousand, one hundred sixty-five".