20059340209 has 2 divisors, whose sum is σ = 20059340210. Its totient is φ = 20059340208.

The previous prime is 20059340149. The next prime is 20059340219. The reversal of 20059340209 is 90204395002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20005273600 + 54066609 = 141440^2 + 7353^2 .

It is a cyclic number.

It is not a de Polignac number, because 20059340209 - 2¹¹ = 20059338161 is a prime.

It is not a weakly prime, because it can be changed into another prime (20059340219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029670104 + 10029670105.

It is an arithmetic number, because the mean of its divisors is an integer number (10029670105).

Almost surely, 2^20059340209 is an apocalyptic number.

It is an amenable number.

20059340209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20059340209 is an equidigital number, since it uses as much as digits as its factorization.

20059340209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 20059340209 in words is "twenty billion, fifty-nine million, three hundred forty thousand, two hundred nine".