65036320 has 48 divisors (see below), whose sum is σ = 154260288. Its totient is φ = 25911040.

The previous prime is 65036311. The next prime is 65036327. The reversal of 65036320 is 2363056.

It is not an unprimeable number, because it can be changed into a prime (65036327) 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, 49107 + ... + 50413.

It is an arithmetic number, because the mean of its divisors is an integer number (3213756).

Almost surely, 2^65036320 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 65036320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77130144).

65036320 is an abundant number, since it is smaller than the sum of its proper divisors (89223968).

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

65036320 is a wasteful number, since it uses less digits than its factorization.

65036320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 65036320 is about 8064.5099045137. The cubic root of 65036320 is about 402.1474505094.

Adding to 65036320 its reverse (2363056), we get a palindrome (67399376).

It can be divided in two parts, 65036 and 320, that added together give a palindrome (65356).

The spelling of 65036320 in words is "sixty-five million, thirty-six thousand, three hundred twenty".