20367942159 has 4 divisors (see below), whose sum is σ = 27157256216. Its totient is φ = 13578628104.

The previous prime is 20367942149. The next prime is 20367942193. The reversal of 20367942159 is 95124976302.

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

It is not a de Polignac number, because 20367942159 - 2⁴ = 20367942143 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 (20367942149) 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, 3394657024 + ... + 3394657029.

It is an arithmetic number, because the mean of its divisors is an integer number (6789314054).

Almost surely, 2^20367942159 is an apocalyptic number.

20367942159 is a deficient number, since it is larger than the sum of its proper divisors (6789314057).

20367942159 is an equidigital number, since it uses as much as digits as its factorization.

20367942159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789314056.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 20367942159 in words is "twenty billion, three hundred sixty-seven million, nine hundred forty-two thousand, one hundred fifty-nine".