68255705159 has 8 divisors (see below), whose sum is σ = 68458347552. Its totient is φ = 68053271040.

The previous prime is 68255705137. The next prime is 68255705173. The reversal of 68255705159 is 95150755286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68255705159 - 2⁸ = 68255704903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68255705159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68255705059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617039 + ... + 719199.

It is an arithmetic number, because the mean of its divisors is an integer number (8557293444).

Almost surely, 2^68255705159 is an apocalyptic number.

68255705159 is a deficient number, since it is larger than the sum of its proper divisors (202642393).

68255705159 is a wasteful number, since it uses less digits than its factorization.

68255705159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104137.

The product of its (nonzero) digits is 3780000, while the sum is 53.

The spelling of 68255705159 in words is "sixty-eight billion, two hundred fifty-five million, seven hundred five thousand, one hundred fifty-nine".