65044216 has 32 divisors (see below), whose sum is σ = 127134000. Its totient is φ = 31159296.

The previous prime is 65044211. The next prime is 65044219. The reversal of 65044216 is 61244056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65044211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31240 + ... + 33256.

Almost surely, 2^65044216 is an apocalyptic number.

It is an amenable number.

65044216 is a deficient number, since it is larger than the sum of its proper divisors (62089784).

65044216 is a wasteful number, since it uses less digits than its factorization.

65044216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 65044216 is about 8064.9994420335. Note that the first 3 decimals coincide. The cubic root of 65044216 is about 402.1637246353.

The spelling of 65044216 in words is "sixty-five million, forty-four thousand, two hundred sixteen".