65750564 has 24 divisors (see below), whose sum is σ = 132132000. Its totient is φ = 28313280.

The previous prime is 65750563. The next prime is 65750579. The reversal of 65750564 is 46505756.

65750564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (65750561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38489 + ... + 40160.

It is an arithmetic number, because the mean of its divisors is an integer number (5505500).

Almost surely, 2^65750564 is an apocalyptic number.

It is an amenable number.

65750564 is an abundant number, since it is smaller than the sum of its proper divisors (66381436).

65750564 is a wasteful number, since it uses less digits than its factorization.

65750564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78683 (or 78681 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 65750564 is about 8108.6721477687. The cubic root of 65750564 is about 403.6142529140.

The spelling of 65750564 in words is "sixty-five million, seven hundred fifty thousand, five hundred sixty-four".