91168955 has 8 divisors (see below), whose sum is σ = 111730752. Its totient is φ = 71383168.

The previous prime is 91168949. The next prime is 91168967. The reversal of 91168955 is 55986119.

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 91168955 - 2²² = 86974651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193742 + ... + 194211.

It is an arithmetic number, because the mean of its divisors is an integer number (13966344).

Almost surely, 2^91168955 is an apocalyptic number.

91168955 is a deficient number, since it is larger than the sum of its proper divisors (20561797).

91168955 is a wasteful number, since it uses less digits than its factorization.

91168955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388005.

The product of its digits is 97200, while the sum is 44.

The square root of 91168955 is about 9548.2435557541. The cubic root of 91168955 is about 450.0723422791.

The spelling of 91168955 in words is "ninety-one million, one hundred sixty-eight thousand, nine hundred fifty-five".