65539216 has 20 divisors (see below), whose sum is σ = 134452332. Its totient is φ = 30841856.

The previous prime is 65539139. The next prime is 65539219. The reversal of 65539216 is 61293556.

It can be written as a sum of positive squares in 2 ways, for example, as 57699216 + 7840000 = 7596^2 + 2800^2 .

It is not an unprimeable number, because it can be changed into a prime (65539219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120205 + ... + 120748.

Almost surely, 2^65539216 is an apocalyptic number.

It is an amenable number.

65539216 is an abundant number, since it is smaller than the sum of its proper divisors (68913116).

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

65539216 is a wasteful number, since it uses less digits than its factorization.

65539216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240978 (or 240972 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 65539216 is about 8095.6294381598. The cubic root of 65539216 is about 403.1813307577.

The spelling of 65539216 in words is "sixty-five million, five hundred thirty-nine thousand, two hundred sixteen".