3165400065 has 32 divisors (see below), whose sum is σ = 5195177856. Its totient is φ = 1644894720.

The previous prime is 3165400033. The next prime is 3165400087. The reversal of 3165400065 is 5600045613.

It is not a de Polignac number, because 3165400065 - 2⁵ = 3165400033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265717 + ... + 277373.

It is an arithmetic number, because the mean of its divisors is an integer number (162349308).

Almost surely, 2^3165400065 is an apocalyptic number.

It is an amenable number.

3165400065 is a deficient number, since it is larger than the sum of its proper divisors (2029777791).

3165400065 is a wasteful number, since it uses less digits than its factorization.

3165400065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12129.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3165400065 is about 56261.8882104040. Note that the first 3 decimals coincide. The cubic root of 3165400065 is about 1468.2822060206.

Adding to 3165400065 its reverse (5600045613), we get a palindrome (8765445678).

The spelling of 3165400065 in words is "three billion, one hundred sixty-five million, four hundred thousand, sixty-five".