20205162271339 has 2 divisors, whose sum is σ = 20205162271340. Its totient is φ = 20205162271338.

The previous prime is 20205162271331. The next prime is 20205162271423. The reversal of 20205162271339 is 93317226150202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20205162271339 - 2³ = 20205162271331 is a prime.

It is a super-2 number, since 2×20205162271339² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20205162271295 and 20205162271304.

It is not a weakly prime, because it can be changed into another prime (20205162271331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102581135669 + 10102581135670.

It is an arithmetic number, because the mean of its divisors is an integer number (10102581135670).

Almost surely, 2^{20205162271339} is an apocalyptic number.

20205162271339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20205162271339 is an equidigital number, since it uses as much as digits as its factorization.

20205162271339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 20205162271339 in words is "twenty trillion, two hundred five billion, one hundred sixty-two million, two hundred seventy-one thousand, three hundred thirty-nine".