65765868 has 48 divisors (see below), whose sum is σ = 175929600. Its totient is φ = 18730944.

The previous prime is 65765867. The next prime is 65765923. The reversal of 65765868 is 86856756.

It is a self number, because there is not a number n which added to its sum of digits gives 65765868.

It is not an unprimeable number, because it can be changed into a prime (65765863) 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, 30283 + ... + 32381.

It is an arithmetic number, because the mean of its divisors is an integer number (3665200).

Almost surely, 2^65765868 is an apocalyptic number.

It is an amenable number.

65765868 is an abundant number, since it is smaller than the sum of its proper divisors (110163732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65765868 is a wasteful number, since it uses less digits than its factorization.

65765868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2484 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 65765868 is about 8109.6157738823. The cubic root of 65765868 is about 403.6455653619.

The spelling of 65765868 in words is "sixty-five million, seven hundred sixty-five thousand, eight hundred sixty-eight".