65717216 has 24 divisors (see below), whose sum is σ = 130007304. Its totient is φ = 32699520.

The previous prime is 65717203. The next prime is 65717221. The reversal of 65717216 is 61271756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886 + ... + 11618.

It is an arithmetic number, because the mean of its divisors is an integer number (5416971).

Almost surely, 2^65717216 is an apocalyptic number.

It is an amenable number.

65717216 is a deficient number, since it is larger than the sum of its proper divisors (64290088).

65717216 is a wasteful number, since it uses less digits than its factorization.

65717216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954 (or 9946 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 65717216 is about 8106.6155700144. The cubic root of 65717216 is about 403.5460050619.

The spelling of 65717216 in words is "sixty-five million, seven hundred seventeen thousand, two hundred sixteen".