65366720 has 56 divisors (see below), whose sum is σ = 156362400. Its totient is φ = 26028032.

The previous prime is 65366701. The next prime is 65366723. The reversal of 65366720 is 2766356.

65366720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65366723) 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, 114596 + ... + 115164.

Almost surely, 2^65366720 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 65366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78181200).

65366720 is an abundant number, since it is smaller than the sum of its proper divisors (90995680).

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

65366720 is a wasteful number, since it uses less digits than its factorization.

65366720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 65366720 is about 8084.9687692656. The cubic root of 65366720 is about 402.8273021554.

The spelling of 65366720 in words is "sixty-five million, three hundred sixty-six thousand, seven hundred twenty".