65816480 has 96 divisors (see below), whose sum is σ = 162570240. Its totient is φ = 25159680.

The previous prime is 65816473. The next prime is 65816483. The reversal of 65816480 is 8461856.

65816480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (65816483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518177 + ... + 518303.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^65816480 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 65816480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81285120).

65816480 is an abundant number, since it is smaller than the sum of its proper divisors (96753760).

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

65816480 is a wasteful number, since it uses less digits than its factorization.

65816480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 65816480 is about 8112.7356668389. The cubic root of 65816480 is about 403.7490844647.

The spelling of 65816480 in words is "sixty-five million, eight hundred sixteen thousand, four hundred eighty".