65067688 has 48 divisors (see below), whose sum is σ = 143147520. Its totient is φ = 27645408.

The previous prime is 65067679. The next prime is 65067689. The reversal of 65067688 is 88676056.

It is a happy number.

65067688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65067689) 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 11 ways as a sum of consecutive naturals, for example, 49131 + ... + 50437.

It is an arithmetic number, because the mean of its divisors is an integer number (2982240).

Almost surely, 2^65067688 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 65067688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71573760).

65067688 is an abundant number, since it is smaller than the sum of its proper divisors (78079832).

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

65067688 is a wasteful number, since it uses less digits than its factorization.

65067688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 65067688 is about 8066.4544875676. The cubic root of 65067688 is about 402.2120940486.

The spelling of 65067688 in words is "sixty-five million, sixty-seven thousand, six hundred eighty-eight".