99888888866 has 48 divisors (see below), whose sum is σ = 163349460000. Its totient is φ = 45789928704.

The previous prime is 99888888859. The next prime is 99888888893. The reversal of 99888888866 is 66888888899.

99888888866 is a strobogrammatic number because it is the same when read upside-down.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38284970 + ... + 38287578.

It is an arithmetic number, because the mean of its divisors is an integer number (3403113750).

Almost surely, 2^99888888866 is an apocalyptic number.

99888888866 is a deficient number, since it is larger than the sum of its proper divisors (63460571134).

99888888866 is a wasteful number, since it uses less digits than its factorization.

99888888866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3350 counting only the distinct ones).

The product of its digits is 6115295232, while the sum is 86.

The spelling of 99888888866 in words is "ninety-nine billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred sixty-six".