68339566658 has 32 divisors (see below), whose sum is σ = 113969488320. Its totient is φ = 30469008960.

The previous prime is 68339566657. The next prime is 68339566679. The reversal of 68339566658 is 85666593386.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68339566594 and 68339566603.

It is not an unprimeable number, because it can be changed into a prime (68339566657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6593216 + ... + 6603572.

It is an arithmetic number, because the mean of its divisors is an integer number (3561546510).

Almost surely, 2^68339566658 is an apocalyptic number.

68339566658 is a deficient number, since it is larger than the sum of its proper divisors (45629921662).

68339566658 is a wasteful number, since it uses less digits than its factorization.

68339566658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16082.

The product of its digits is 167961600, while the sum is 65.

The spelling of 68339566658 in words is "sixty-eight billion, three hundred thirty-nine million, five hundred sixty-six thousand, six hundred fifty-eight".