2166037171 has 8 divisors (see below), whose sum is σ = 2202876864. Its totient is φ = 2129330280.

The previous prime is 2166037141. The next prime is 2166037187. The reversal of 2166037171 is 1717306612.

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 2166037171 - 2⁷ = 2166037043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166037141) 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, 25 + ... + 65818.

It is an arithmetic number, because the mean of its divisors is an integer number (275359608).

Almost surely, 2^2166037171 is an apocalyptic number.

2166037171 is a deficient number, since it is larger than the sum of its proper divisors (36839693).

2166037171 is an equidigital number, since it uses as much as digits as its factorization.

2166037171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66401.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 2166037171 is about 46540.7044531988. The cubic root of 2166037171 is about 1293.8640169424.

The spelling of 2166037171 in words is "two billion, one hundred sixty-six million, thirty-seven thousand, one hundred seventy-one".