1091641368611 has 2 divisors, whose sum is σ = 1091641368612. Its totient is φ = 1091641368610.

The previous prime is 1091641368599. The next prime is 1091641368617. The reversal of 1091641368611 is 1168631461901.

1091641368611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1091641368611 - 2³⁰ = 1090567626787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1091641368617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545820684305 + 545820684306.

It is an arithmetic number, because the mean of its divisors is an integer number (545820684306).

Almost surely, 2^{1091641368611} is an apocalyptic number.

1091641368611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091641368611 is an equidigital number, since it uses as much as digits as its factorization.

1091641368611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 1091641368611 in words is "one trillion, ninety-one billion, six hundred forty-one million, three hundred sixty-eight thousand, six hundred eleven".