99999999885 has 16 divisors (see below), whose sum is σ = 160085287296. Its totient is φ = 53304904128.

The previous prime is 99999999871. The next prime is 99999999907. The reversal of 99999999885 is 58899999999.

It is not a de Polignac number, because 99999999885 - 2⁶ = 99999999821 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747729 + ... + 1804038.

It is an arithmetic number, because the mean of its divisors is an integer number (10005330456).

Almost surely, 2^99999999885 is an apocalyptic number.

It is an amenable number.

99999999885 is a deficient number, since it is larger than the sum of its proper divisors (60085287411).

99999999885 is a wasteful number, since it uses less digits than its factorization.

99999999885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553652.

The product of its digits is 13774950720, while the sum is 93.

The spelling of 99999999885 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred eighty-five".