65289216 has 88 divisors (see below), whose sum is σ = 177745104. Its totient is φ = 21299200.

The previous prime is 65289209. The next prime is 65289233. The reversal of 65289216 is 61298256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162616 + ... + 163016.

Almost surely, 2^65289216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65289216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88872552).

65289216 is an abundant number, since it is smaller than the sum of its proper divisors (112455888).

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

65289216 is a wasteful number, since it uses less digits than its factorization.

65289216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 459 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 65289216 is about 8080.1742555467. The cubic root of 65289216 is about 402.6680311246.

The spelling of 65289216 in words is "sixty-five million, two hundred eighty-nine thousand, two hundred sixteen".