65097216 has 160 divisors (see below), whose sum is σ = 204763680. Its totient is φ = 20348928.

The previous prime is 65097203. The next prime is 65097223. The reversal of 65097216 is 61279056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234870 + ... + 235146.

It is an arithmetic number, because the mean of its divisors is an integer number (1279773).

Almost surely, 2^65097216 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 65097216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102381840).

65097216 is an abundant number, since it is smaller than the sum of its proper divisors (139666464).

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

65097216 is a wasteful number, since it uses less digits than its factorization.

65097216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 65097216 is about 8068.2845760422. The cubic root of 65097216 is about 402.2729267138.

The spelling of 65097216 in words is "sixty-five million, ninety-seven thousand, two hundred sixteen".