65162816 has 28 divisors (see below), whose sum is σ = 130507740. Its totient is φ = 32279040.

The previous prime is 65162791. The next prime is 65162827. The reversal of 65162816 is 61826156.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 32718400 = 5696^2 + 5720^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306 + ... + 11646.

Almost surely, 2^65162816 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 65162816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65253870).

65162816 is an abundant number, since it is smaller than the sum of its proper divisors (65344924).

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

65162816 is a wasteful number, since it uses less digits than its factorization.

65162816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462 (or 9452 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 65162816 is about 8072.3488527194. The cubic root of 65162816 is about 402.4080079879.

The spelling of 65162816 in words is "sixty-five million, one hundred sixty-two thousand, eight hundred sixteen".