1163666771 has 2 divisors, whose sum is σ = 1163666772. Its totient is φ = 1163666770.

The previous prime is 1163666767. The next prime is 1163666773. The reversal of 1163666771 is 1776663611.

It is a strong prime.

It is an emirp because it is prime and its reverse (1776663611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163666771 - 2² = 1163666767 is a prime.

Together with 1163666773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1163666773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581833385 + 581833386.

It is an arithmetic number, because the mean of its divisors is an integer number (581833386).

Almost surely, 2^1163666771 is an apocalyptic number.

1163666771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163666771 is an equidigital number, since it uses as much as digits as its factorization.

1163666771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 1163666771 is about 34112.5603114161. The cubic root of 1163666771 is about 1051.8235194206.

The spelling of 1163666771 in words is "one billion, one hundred sixty-three million, six hundred sixty-six thousand, seven hundred seventy-one".