65883594830640 has 160 divisors (see below), whose sum is σ = 207056172794880. Its totient is φ = 17326678284288.

The previous prime is 65883594830623. The next prime is 65883594830681. The reversal of 65883594830640 is 4603849538856.

65883594830640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 8116871²-1.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194635779 + ... + 194973981.

It is an arithmetic number, because the mean of its divisors is an integer number (1294101079968).

Almost surely, 2^{65883594830640} is an apocalyptic number.

65883594830640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65883594830640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103528086397440).

65883594830640 is an abundant number, since it is smaller than the sum of its proper divisors (141172577964240).

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

65883594830640 is a wasteful number, since it uses less digits than its factorization.

65883594830640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349411 (or 349405 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 69.

The spelling of 65883594830640 in words is "sixty-five trillion, eight hundred eighty-three billion, five hundred ninety-four million, eight hundred thirty thousand, six hundred forty".