99166909 has 8 divisors (see below), whose sum is σ = 105140000. Its totient is φ = 93269232.

The previous prime is 99166889. The next prime is 99166913. The reversal of 99166909 is 90966199.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99166909 - 2⁵ = 99166877 is a prime.

It is a super-2 number, since 2×99166909² = 19668151681228562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99166939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16134 + ... + 21415.

It is an arithmetic number, because the mean of its divisors is an integer number (13142500).

Almost surely, 2^99166909 is an apocalyptic number.

It is an amenable number.

99166909 is a deficient number, since it is larger than the sum of its proper divisors (5973091).

99166909 is a wasteful number, since it uses less digits than its factorization.

99166909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37707.

The product of its (nonzero) digits is 236196, while the sum is 49.

The square root of 99166909 is about 9958.2583316562. The cubic root of 99166909 is about 462.8663320178.

The spelling of 99166909 in words is "ninety-nine million, one hundred sixty-six thousand, nine hundred nine".