20000912493169 has 2 divisors, whose sum is σ = 20000912493170. Its totient is φ = 20000912493168.

The previous prime is 20000912493113. The next prime is 20000912493209. The reversal of 20000912493169 is 96139421900002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12808432158769 + 7192480334400 = 3578887^2 + 2681880^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000912493169 - 2⁴³ = 11204819470961 is a prime.

It is a super-2 number, since 2×20000912493169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000912493769) 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, 10000456246584 + 10000456246585.

It is an arithmetic number, because the mean of its divisors is an integer number (10000456246585).

Almost surely, 2^{20000912493169} is an apocalyptic number.

It is an amenable number.

20000912493169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000912493169 is an equidigital number, since it uses as much as digits as its factorization.

20000912493169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 20000912493169 in words is "twenty trillion, nine hundred twelve million, four hundred ninety-three thousand, one hundred sixty-nine".