65895665 has 8 divisors (see below), whose sum is σ = 86263488. Its totient is φ = 47924080.

The previous prime is 65895659. The next prime is 65895679. The reversal of 65895665 is 56659856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65895665 - 2²² = 61701361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598997 + ... + 599106.

It is an arithmetic number, because the mean of its divisors is an integer number (10782936).

Almost surely, 2^65895665 is an apocalyptic number.

It is an amenable number.

65895665 is a deficient number, since it is larger than the sum of its proper divisors (20367823).

65895665 is a wasteful number, since it uses less digits than its factorization.

65895665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198119.

The product of its digits is 1944000, while the sum is 50.

The square root of 65895665 is about 8117.6144894914. The cubic root of 65895665 is about 403.9109388525.

It can be divided in two parts, 658956 and 65, that multiplied together give a triangular number (42832140 = T₉₂₅₅).

The spelling of 65895665 in words is "sixty-five million, eight hundred ninety-five thousand, six hundred sixty-five".