8621166811 has 2 divisors, whose sum is σ = 8621166812. Its totient is φ = 8621166810.

The previous prime is 8621166791. The next prime is 8621166859. The reversal of 8621166811 is 1186611268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8621166811 - 2⁵ = 8621166779 is a prime.

It is not a weakly prime, because it can be changed into another prime (8621167811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4310583405 + 4310583406.

It is an arithmetic number, because the mean of its divisors is an integer number (4310583406).

Almost surely, 2^8621166811 is an apocalyptic number.

8621166811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8621166811 is an equidigital number, since it uses as much as digits as its factorization.

8621166811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 40.

The square root of 8621166811 is about 92850.2386157408. The cubic root of 8621166811 is about 2050.4791115741.

The spelling of 8621166811 in words is "eight billion, six hundred twenty-one million, one hundred sixty-six thousand, eight hundred eleven".