65011216 has 20 divisors (see below), whose sum is σ = 130023424. Its totient is φ = 31456800.

The previous prime is 65011201. The next prime is 65011223. The reversal of 65011216 is 61211056.

65011216 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65040 + ... + 66031.

Almost surely, 2^65011216 is an apocalyptic number.

It is an amenable number.

65011216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65011216 is a wasteful number, since it uses less digits than its factorization.

65011216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131110 (or 131104 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 65011216 is about 8062.9533050862. The cubic root of 65011216 is about 402.0957009186.

The spelling of 65011216 in words is "sixty-five million, eleven thousand, two hundred sixteen".