65324320 has 48 divisors (see below), whose sum is σ = 156219840. Its totient is φ = 25809664.

The previous prime is 65324317. The next prime is 65324339. The reversal of 65324320 is 2342356.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10821 + ... + 15739.

It is an arithmetic number, because the mean of its divisors is an integer number (3254580).

Almost surely, 2^65324320 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 65324320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78109920).

65324320 is an abundant number, since it is smaller than the sum of its proper divisors (90895520).

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

65324320 is a wasteful number, since it uses less digits than its factorization.

65324320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 65324320 is about 8082.3461940206. The cubic root of 65324320 is about 402.7401855927.

Adding to 65324320 its reverse (2342356), we get a palindrome (67666676).

The spelling of 65324320 in words is "sixty-five million, three hundred twenty-four thousand, three hundred twenty".