8611111866 has 32 divisors (see below), whose sum is σ = 20718466560. Its totient is φ = 2330827056.

The previous prime is 8611111829. The next prime is 8611111903. The reversal of 8611111866 is 6681111168.

It is an interprime number because it is at equal distance from previous prime (8611111829) and next prime (8611111903).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5394636 + ... + 5396231.

It is an arithmetic number, because the mean of its divisors is an integer number (647452080).

Almost surely, 2^8611111866 is an apocalyptic number.

8611111866 is an abundant number, since it is smaller than the sum of its proper divisors (12107354694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8611111866 is a wasteful number, since it uses less digits than its factorization.

8611111866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10790898.

The product of its digits is 13824, while the sum is 39.

The square root of 8611111866 is about 92796.0767812950. The cubic root of 8611111866 is about 2049.6816373349.

The spelling of 8611111866 in words is "eight billion, six hundred eleven million, one hundred eleven thousand, eight hundred sixty-six".