1160766991 has 2 divisors, whose sum is σ = 1160766992. Its totient is φ = 1160766990.

The previous prime is 1160766979. The next prime is 1160767033. The reversal of 1160766991 is 1996670611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1160766991 - 2⁷ = 1160766863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1160766911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580383495 + 580383496.

It is an arithmetic number, because the mean of its divisors is an integer number (580383496).

Almost surely, 2^1160766991 is an apocalyptic number.

1160766991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1160766991 is an equidigital number, since it uses as much as digits as its factorization.

1160766991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 1160766991 is about 34070.0306868074. The cubic root of 1160766991 is about 1050.9491013291.

The spelling of 1160766991 in words is "one billion, one hundred sixty million, seven hundred sixty-six thousand, nine hundred ninety-one".