220168171 has 4 divisors (see below), whose sum is σ = 220226872. Its totient is φ = 220109472.

The previous prime is 220168153. The next prime is 220168177. The reversal of 220168171 is 171861022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220168171 - 2⁹ = 220167659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220168177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23310 + ... + 31363.

It is an arithmetic number, because the mean of its divisors is an integer number (55056718).

Almost surely, 2^220168171 is an apocalyptic number.

220168171 is a deficient number, since it is larger than the sum of its proper divisors (58701).

220168171 is an equidigital number, since it uses as much as digits as its factorization.

220168171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58700.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 220168171 is about 14838.0649344852. The cubic root of 220168171 is about 603.8348551838.

The spelling of 220168171 in words is "two hundred twenty million, one hundred sixty-eight thousand, one hundred seventy-one".