8166118799 has 2 divisors, whose sum is σ = 8166118800. Its totient is φ = 8166118798.

The previous prime is 8166118733. The next prime is 8166118819. The reversal of 8166118799 is 9978116618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8166118799 - 2²⁰ = 8165070223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8166118199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083059399 + 4083059400.

It is an arithmetic number, because the mean of its divisors is an integer number (4083059400).

Almost surely, 2^8166118799 is an apocalyptic number.

8166118799 is a deficient number, since it is larger than the sum of its proper divisors (1).

8166118799 is an equidigital number, since it uses as much as digits as its factorization.

8166118799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 56.

The square root of 8166118799 is about 90366.5801001676. The cubic root of 8166118799 is about 2013.7485059782.

The spelling of 8166118799 in words is "eight billion, one hundred sixty-six million, one hundred eighteen thousand, seven hundred ninety-nine".