20711590259 has 2 divisors, whose sum is σ = 20711590260. Its totient is φ = 20711590258.

The previous prime is 20711590247. The next prime is 20711590261. The reversal of 20711590259 is 95209511702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20711590259 - 2²⁴ = 20694813043 is a prime.

Together with 20711590261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20711590759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355795129 + 10355795130.

It is an arithmetic number, because the mean of its divisors is an integer number (10355795130).

Almost surely, 2^20711590259 is an apocalyptic number.

20711590259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20711590259 is an equidigital number, since it uses as much as digits as its factorization.

20711590259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The spelling of 20711590259 in words is "twenty billion, seven hundred eleven million, five hundred ninety thousand, two hundred fifty-nine".