99998166 has 8 divisors (see below), whose sum is σ = 199996344. Its totient is φ = 33332720.

The previous prime is 99998147. The next prime is 99998191. The reversal of 99998166 is 66189999.

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

99998166 is an admirable 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, 8333175 + ... + 8333186.

It is an arithmetic number, because the mean of its divisors is an integer number (24999543).

Almost surely, 2^99998166 is an apocalyptic number.

99998166 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.

99998166 is a wasteful number, since it uses less digits than its factorization.

99998166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666366.

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

The square root of 99998166 is about 9999.9082995796. The cubic root of 99998166 is about 464.1560457860.

The spelling of 99998166 in words is "ninety-nine million, nine hundred ninety-eight thousand, one hundred sixty-six".