20068571318159 has 24 divisors (see below), whose sum is σ = 24840268593120. Its totient is φ = 15875376910848.

The previous prime is 20068571318119. The next prime is 20068571318177. The reversal of 20068571318159 is 95181317586002.

It is not a de Polignac number, because 20068571318159 - 2²⁸ = 20068302882703 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 (20068571318119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4533899 + ... + 7790595.

It is an arithmetic number, because the mean of its divisors is an integer number (1035011191380).

Almost surely, 2^{20068571318159} is an apocalyptic number.

20068571318159 is a deficient number, since it is larger than the sum of its proper divisors (4771697274961).

20068571318159 is a wasteful number, since it uses less digits than its factorization.

20068571318159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261939 (or 3261926 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 56.

The spelling of 20068571318159 in words is "twenty trillion, sixty-eight billion, five hundred seventy-one million, three hundred eighteen thousand, one hundred fifty-nine".