20589017159 has 2 divisors, whose sum is σ = 20589017160. Its totient is φ = 20589017158.

The previous prime is 20589017149. The next prime is 20589017171. The reversal of 20589017159 is 95171098502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20589017159 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20589017129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10294508579 + 10294508580.

It is an arithmetic number, because the mean of its divisors is an integer number (10294508580).

Almost surely, 2^20589017159 is an apocalyptic number.

20589017159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20589017159 is an equidigital number, since it uses as much as digits as its factorization.

20589017159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 47.

The spelling of 20589017159 in words is "twenty billion, five hundred eighty-nine million, seventeen thousand, one hundred fifty-nine".