198567270744169 has 2 divisors, whose sum is σ = 198567270744170. Its totient is φ = 198567270744168.

The previous prime is 198567270744151. The next prime is 198567270744211. The reversal of 198567270744169 is 961447072765891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143859946070569 + 54707324673600 = 11994163^2 + 7396440^2 .

It is an emirp because it is prime and its reverse (961447072765891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198567270744169 - 2³⁹ = 198017514930281 is a prime.

It is a super-2 number, since 2×198567270744169² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198567270744095 and 198567270744104.

It is not a weakly prime, because it can be changed into another prime (198567270744119) 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, 99283635372084 + 99283635372085.

It is an arithmetic number, because the mean of its divisors is an integer number (99283635372085).

Almost surely, 2^{198567270744169} is an apocalyptic number.

It is an amenable number.

198567270744169 is a deficient number, since it is larger than the sum of its proper divisors (1).

198567270744169 is an equidigital number, since it uses as much as digits as its factorization.

198567270744169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280240640, while the sum is 76.

The spelling of 198567270744169 in words is "one hundred ninety-eight trillion, five hundred sixty-seven billion, two hundred seventy million, seven hundred forty-four thousand, one hundred sixty-nine".