91796166 has 144 divisors (see below), whose sum is σ = 260262912. Its totient is φ = 23736240.

The previous prime is 91796129. The next prime is 91796167. The reversal of 91796166 is 66169719.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91796167) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 411531 + ... + 411753.

Almost surely, 2^91796166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91796166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130131456).

91796166 is an abundant number, since it is smaller than the sum of its proper divisors (168466746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91796166 is a wasteful number, since it uses less digits than its factorization.

91796166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 246 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 91796166 is about 9581.0315728527. The cubic root of 91796166 is about 451.1020986378.

The spelling of 91796166 in words is "ninety-one million, seven hundred ninety-six thousand, one hundred sixty-six".