65216 has 14 divisors (see below), whose sum is σ = 129540. Its totient is φ = 32576.

The previous prime is 65213. The next prime is 65239. The reversal of 65216 is 61256.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (65213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446 + ... + 573.

2⁶⁵²¹⁶ is an apocalyptic number.

It is an amenable number.

65216 is a deficient number, since it is larger than the sum of its proper divisors (64324).

65216 is a wasteful number, since it uses less digits than its factorization.

65216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1021 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 65216 is about 255.3742351922. The cubic root of 65216 is about 40.2517456131.

The spelling of 65216 in words is "sixty-five thousand, two hundred sixteen".