9911166 has 8 divisors (see below), whose sum is σ = 19822344. Its totient is φ = 3303720.

The previous prime is 9911149. The next prime is 9911171. The reversal of 9911166 is 6611199.

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

9911166 is an admirable number.

It is a super-2 number, since 2×9911166² = 196462422959112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

9911166 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is a zygodrome in base 10.

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, 825925 + ... + 825936.

It is an arithmetic number, because the mean of its divisors is an integer number (2477793).

Almost surely, 2^9911166 is an apocalyptic number.

9911166 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.

9911166 is a wasteful number, since it uses less digits than its factorization.

9911166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651866.

The product of its digits is 2916, while the sum is 33.

The square root of 9911166 is about 3148.2004383457. The cubic root of 9911166 is about 214.8036137118.

Adding to 9911166 its sum of digits (33), we get a palindrome (9911199).

The spelling of 9911166 in words is "nine million, nine hundred eleven thousand, one hundred sixty-six".