171066872 has 16 divisors (see below), whose sum is σ = 324058560. Its totient is φ = 84651264.

The previous prime is 171066871. The next prime is 171066877. The reversal of 171066872 is 278660171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171066871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109448 + ... + 110999.

It is an arithmetic number, because the mean of its divisors is an integer number (20253660).

Almost surely, 2^171066872 is an apocalyptic number.

It is an amenable number.

171066872 is a deficient number, since it is larger than the sum of its proper divisors (152991688).

171066872 is a wasteful number, since it uses less digits than its factorization.

171066872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220550 (or 220546 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 171066872 is about 13079.2534955172. The cubic root of 171066872 is about 555.1222542682.

The spelling of 171066872 in words is "one hundred seventy-one million, sixty-six thousand, eight hundred seventy-two".