65063680 has 72 divisors (see below), whose sum is σ = 170052624. Its totient is φ = 23654400.

The previous prime is 65063653. The next prime is 65063693. The reversal of 65063680 is 8636056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11770 + ... + 16390.

It is an arithmetic number, because the mean of its divisors is an integer number (2361842).

Almost surely, 2^65063680 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 65063680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85026312).

65063680 is an abundant number, since it is smaller than the sum of its proper divisors (104988944).

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

65063680 is a wasteful number, since it uses less digits than its factorization.

65063680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653 (or 4639 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 65063680 is about 8066.2060474550. The cubic root of 65063680 is about 402.2038354735.

The spelling of 65063680 in words is "sixty-five million, sixty-three thousand, six hundred eighty".