65264320 has 56 divisors (see below), whose sum is σ = 169548048. Its totient is φ = 23731200.

The previous prime is 65264293. The next prime is 65264321. The reversal of 65264320 is 2346256.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65264321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5751 + ... + 12790.

Almost surely, 2^65264320 is an apocalyptic number.

It is an amenable number.

65264320 is an abundant number, since it is smaller than the sum of its proper divisors (104283728).

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

65264320 is a wasteful number, since it uses less digits than its factorization.

65264320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18569 (or 18559 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 65264320 is about 8078.6335478223. The cubic root of 65264320 is about 402.6168429989.

The spelling of 65264320 in words is "sixty-five million, two hundred sixty-four thousand, three hundred twenty".