2016172171 has 16 divisors (see below), whose sum is σ = 2355067008. Its totient is φ = 1708876800.

The previous prime is 2016172159. The next prime is 2016172189. The reversal of 2016172171 is 1712716102.

It is a cyclic number.

It is not a de Polignac number, because 2016172171 - 2¹⁵ = 2016139403 is a prime.

It is a super-2 number, since 2×2016172171² = 8129900446229706482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2016172121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102195 + ... + 120316.

It is an arithmetic number, because the mean of its divisors is an integer number (147191688).

Almost surely, 2^2016172171 is an apocalyptic number.

2016172171 is a deficient number, since it is larger than the sum of its proper divisors (338894837).

2016172171 is a wasteful number, since it uses less digits than its factorization.

2016172171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222582.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 2016172171 is about 44901.8058768242. The cubic root of 2016172171 is about 1263.3078806090.

Adding to 2016172171 its reverse (1712716102), we get a palindrome (3728888273).

The spelling of 2016172171 in words is "two billion, sixteen million, one hundred seventy-two thousand, one hundred seventy-one".