65446216 has 32 divisors (see below), whose sum is σ = 135115200. Its totient is φ = 29471040.

The previous prime is 65446193. The next prime is 65446217. The reversal of 65446216 is 61264456.

It is not an unprimeable number, because it can be changed into a prime (65446217) 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, 6181 + ... + 13003.

It is an arithmetic number, because the mean of its divisors is an integer number (4222350).

Almost surely, 2^65446216 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 65446216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67557600).

65446216 is an abundant number, since it is smaller than the sum of its proper divisors (69668984).

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

65446216 is a wasteful number, since it uses less digits than its factorization.

65446216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949 (or 6945 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 65446216 is about 8089.8835591126. The cubic root of 65446216 is about 402.9905360165.

The spelling of 65446216 in words is "sixty-five million, four hundred forty-six thousand, two hundred sixteen".