91166108 has 12 divisors (see below), whose sum is σ = 174044472. Its totient is φ = 41439120.

The previous prime is 91166093. The next prime is 91166197. The reversal of 91166108 is 80166119.

It is a super-2 number, since 2×91166108² = 16622518495735328, which contains 22 as substring.

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, 1035935 + ... + 1036022.

It is an arithmetic number, because the mean of its divisors is an integer number (14503706).

Almost surely, 2^91166108 is an apocalyptic number.

It is an amenable number.

91166108 is a deficient number, since it is larger than the sum of its proper divisors (82878364).

91166108 is a wasteful number, since it uses less digits than its factorization.

91166108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071972 (or 2071970 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 91166108 is about 9548.0944695787. The cubic root of 91166108 is about 450.0676573170.

The spelling of 91166108 in words is "ninety-one million, one hundred sixty-six thousand, one hundred eight".