1081191163807 has 2 divisors, whose sum is σ = 1081191163808. Its totient is φ = 1081191163806.

The previous prime is 1081191163781. The next prime is 1081191163847. The reversal of 1081191163807 is 7083611911801.

It is a weak prime.

It is an emirp because it is prime and its reverse (7083611911801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1081191163807 - 2¹⁵ = 1081191131039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081191163847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540595581903 + 540595581904.

It is an arithmetic number, because the mean of its divisors is an integer number (540595581904).

Almost surely, 2^{1081191163807} is an apocalyptic number.

1081191163807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081191163807 is an equidigital number, since it uses as much as digits as its factorization.

1081191163807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 46.

The spelling of 1081191163807 in words is "one trillion, eighty-one billion, one hundred ninety-one million, one hundred sixty-three thousand, eight hundred seven".