20000985505339 has 2 divisors, whose sum is σ = 20000985505340. Its totient is φ = 20000985505338.

The previous prime is 20000985505321. The next prime is 20000985505379. The reversal of 20000985505339 is 93350558900002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000985505339 - 2¹⁵ = 20000985472571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000985505292 and 20000985505301.

It is not a weakly prime, because it can be changed into another prime (20000985505379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000492752669 + 10000492752670.

It is an arithmetic number, because the mean of its divisors is an integer number (10000492752670).

Almost surely, 2^{20000985505339} is an apocalyptic number.

20000985505339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000985505339 is an equidigital number, since it uses as much as digits as its factorization.

20000985505339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 20000985505339 in words is "twenty trillion, nine hundred eighty-five million, five hundred five thousand, three hundred thirty-nine".