68005130159 has 4 divisors (see below), whose sum is σ = 68038096416. Its totient is φ = 67972163904.

The previous prime is 68005130153. The next prime is 68005130173. The reversal of 68005130159 is 95103150086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68005130159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68005130153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16480034 + ... + 16484159.

It is an arithmetic number, because the mean of its divisors is an integer number (17009524104).

Almost surely, 2^68005130159 is an apocalyptic number.

68005130159 is a deficient number, since it is larger than the sum of its proper divisors (32966257).

68005130159 is a wasteful number, since it uses less digits than its factorization.

68005130159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32966256.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 68005130159 in words is "sixty-eight billion, five million, one hundred thirty thousand, one hundred fifty-nine".