99989166 has 8 divisors (see below), whose sum is σ = 199978344. Its totient is φ = 33329720.

The previous prime is 99989159. The next prime is 99989171. The reversal of 99989166 is 66198999.

It is a sphenic number, since it is the product of 3 distinct primes.

99989166 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8332425 + ... + 8332436.

It is an arithmetic number, because the mean of its divisors is an integer number (24997293).

Almost surely, 2^99989166 is an apocalyptic number.

99989166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99989166 is a wasteful number, since it uses less digits than its factorization.

99989166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16664866.

The product of its digits is 1889568, while the sum is 57.

The square root of 99989166 is about 9999.4582853273. The cubic root of 99989166 is about 464.1421204314.

The spelling of 99989166 in words is "ninety-nine million, nine hundred eighty-nine thousand, one hundred sixty-six".