68017556303220 has 96 divisors (see below), whose sum is σ = 200513469703680. Its totient is φ = 17179896458880.

The previous prime is 68017556303219. The next prime is 68017556303227. The reversal of 68017556303220 is 2230365571086.

It is a happy number.

68017556303220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 68017556303220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68017556303227) by changing a digit.

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, 428602 + ... + 11671281.

It is an arithmetic number, because the mean of its divisors is an integer number (2088681976080).

Almost surely, 2^{68017556303220} is an apocalyptic number.

68017556303220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68017556303220 is an abundant number, since it is smaller than the sum of its proper divisors (132495913400460).

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

68017556303220 is a wasteful number, since it uses less digits than its factorization.

68017556303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104845 (or 12104843 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 68017556303220 in words is "sixty-eight trillion, seventeen billion, five hundred fifty-six million, three hundred three thousand, two hundred twenty".