2291166168 has 32 divisors (see below), whose sum is σ = 5729583600. Its totient is φ = 763499648.

The previous prime is 2291166151. The next prime is 2291166173. The reversal of 2291166168 is 8616611922.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84418 + ... + 108206.

Almost surely, 2^2291166168 is an apocalyptic number.

It is an amenable number.

2291166168 is an abundant number, since it is smaller than the sum of its proper divisors (3438417432).

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

2291166168 is a wasteful number, since it uses less digits than its factorization.

2291166168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811 (or 27807 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 2291166168 is about 47866.1275642808. The cubic root of 2291166168 is about 1318.3139952650.

The spelling of 2291166168 in words is "two billion, two hundred ninety-one million, one hundred sixty-six thousand, one hundred sixty-eight".