1163441041891 has 2 divisors, whose sum is σ = 1163441041892. Its totient is φ = 1163441041890.

The previous prime is 1163441041877. The next prime is 1163441041913. The reversal of 1163441041891 is 1981401443611.

It is a weak prime.

It is an emirp because it is prime and its reverse (1981401443611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163441041891 - 2⁹ = 1163441041379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1163441041291) 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, 581720520945 + 581720520946.

It is an arithmetic number, because the mean of its divisors is an integer number (581720520946).

Almost surely, 2^{1163441041891} is an apocalyptic number.

1163441041891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163441041891 is an equidigital number, since it uses as much as digits as its factorization.

1163441041891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 1163441041891 in words is "one trillion, one hundred sixty-three billion, four hundred forty-one million, forty-one thousand, eight hundred ninety-one".