65910065 has 16 divisors (see below), whose sum is σ = 88881408. Its totient is φ = 46554816.

The previous prime is 65910049. The next prime is 65910067. The reversal of 65910065 is 56001956.

It is a cyclic number.

It is not a de Polignac number, because 65910065 - 2⁴ = 65910049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65910067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20549 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (5555088).

Almost surely, 2^65910065 is an apocalyptic number.

65910065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65910065 is a deficient number, since it is larger than the sum of its proper divisors (22971343).

65910065 is a wasteful number, since it uses less digits than its factorization.

65910065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44128.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 65910065 is about 8118.5014011208. The cubic root of 65910065 is about 403.9403585617.

The spelling of 65910065 in words is "sixty-five million, nine hundred ten thousand, sixty-five".