65801868 has 48 divisors (see below), whose sum is σ = 171405696. Its totient is φ = 19474560.

The previous prime is 65801867. The next prime is 65801881. The reversal of 65801868 is 86810856.

65801868 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 (65801861) 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, 121 + ... + 11472.

It is an arithmetic number, because the mean of its divisors is an integer number (3570952).

Almost surely, 2^65801868 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 65801868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85702848).

65801868 is an abundant number, since it is smaller than the sum of its proper divisors (105603828).

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

65801868 is a wasteful number, since it uses less digits than its factorization.

65801868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11654 (or 11652 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 65801868 is about 8111.8350574947. The cubic root of 65801868 is about 403.7192033049.

It can be divided in two parts, 6580 and 1868, that added together give a palindrome (8448).

The spelling of 65801868 in words is "sixty-five million, eight hundred one thousand, eight hundred sixty-eight".