1329861162197 has 2 divisors, whose sum is σ = 1329861162198. Its totient is φ = 1329861162196.

The previous prime is 1329861162191. The next prime is 1329861162257. The reversal of 1329861162197 is 7912611689231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1256403359236 + 73457802961 = 1120894^2 + 271031^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329861162197 - 2²⁶ = 1329794053333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1329861162191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664930581098 + 664930581099.

It is an arithmetic number, because the mean of its divisors is an integer number (664930581099).

Almost surely, 2^{1329861162197} is an apocalyptic number.

It is an amenable number.

1329861162197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329861162197 is an equidigital number, since it uses as much as digits as its factorization.

1329861162197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 56.

The spelling of 1329861162197 in words is "one trillion, three hundred twenty-nine billion, eight hundred sixty-one million, one hundred sixty-two thousand, one hundred ninety-seven".