20334858169 has 2 divisors, whose sum is σ = 20334858170. Its totient is φ = 20334858168.

The previous prime is 20334858151. The next prime is 20334858221. The reversal of 20334858169 is 96185843302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19498491769 + 836366400 = 139637^2 + 28920^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334858169 - 2¹¹ = 20334856121 is a prime.

It is a super-2 number, since 2×20334858169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20334858469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167429084 + 10167429085.

It is an arithmetic number, because the mean of its divisors is an integer number (10167429085).

Almost surely, 2^20334858169 is an apocalyptic number.

It is an amenable number.

20334858169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334858169 is an equidigital number, since it uses as much as digits as its factorization.

20334858169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 20334858169 in words is "twenty billion, three hundred thirty-four million, eight hundred fifty-eight thousand, one hundred sixty-nine".