20424518159 has 2 divisors, whose sum is σ = 20424518160. Its totient is φ = 20424518158.

The previous prime is 20424518143. The next prime is 20424518161. The reversal of 20424518159 is 95181542402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20424518159 - 2⁴ = 20424518143 is a prime.

Together with 20424518161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424518119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212259079 + 10212259080.

It is an arithmetic number, because the mean of its divisors is an integer number (10212259080).

Almost surely, 2^20424518159 is an apocalyptic number.

20424518159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424518159 is an equidigital number, since it uses as much as digits as its factorization.

20424518159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 20424518159 in words is "twenty billion, four hundred twenty-four million, five hundred eighteen thousand, one hundred fifty-nine".