65765448 has 96 divisors (see below), whose sum is σ = 207792000. Its totient is φ = 18783072.

The previous prime is 65765437. The next prime is 65765449. The reversal of 65765448 is 84456756.

It is not an unprimeable number, because it can be changed into a prime (65765449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23365 + ... + 26027.

It is an arithmetic number, because the mean of its divisors is an integer number (2164500).

Almost surely, 2^65765448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65765448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103896000).

65765448 is an abundant number, since it is smaller than the sum of its proper divisors (142026552).

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

65765448 is a wasteful number, since it uses less digits than its factorization.

65765448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696 (or 2675 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 65765448 is about 8109.5898786560. The cubic root of 65765448 is about 403.6447060940.

The spelling of 65765448 in words is "sixty-five million, seven hundred sixty-five thousand, four hundred forty-eight".