2166326171 has 8 divisors (see below), whose sum is σ = 2195956224. Its totient is φ = 2136894760.

The previous prime is 2166326137. The next prime is 2166326189. The reversal of 2166326171 is 1716236612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2166326171 is a prime.

It is a super-4 number, since 4×2166326171⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166326101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27635 + ... + 71388.

It is an arithmetic number, because the mean of its divisors is an integer number (274494528).

Almost surely, 2^2166326171 is an apocalyptic number.

2166326171 is a deficient number, since it is larger than the sum of its proper divisors (29630053).

2166326171 is a wasteful number, since it uses less digits than its factorization.

2166326171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99321.

The product of its digits is 18144, while the sum is 35.

The square root of 2166326171 is about 46543.8091586840. The cubic root of 2166326171 is about 1293.9215582867.

The spelling of 2166326171 in words is "two billion, one hundred sixty-six million, three hundred twenty-six thousand, one hundred seventy-one".