166232271 has 8 divisors (see below), whose sum is σ = 222171184. Its totient is φ = 110557440.

The previous prime is 166232267. The next prime is 166232329. The reversal of 166232271 is 172232661.

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

It is not a de Polignac number, because 166232271 - 2² = 166232267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166232771) 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 7 ways as a sum of consecutive naturals, for example, 64546 + ... + 67071.

It is an arithmetic number, because the mean of its divisors is an integer number (27771398).

Almost surely, 2^166232271 is an apocalyptic number.

166232271 is a deficient number, since it is larger than the sum of its proper divisors (55938913).

166232271 is a wasteful number, since it uses less digits than its factorization.

166232271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132041.

The product of its digits is 6048, while the sum is 30.

The square root of 166232271 is about 12893.1094387661. The cubic root of 166232271 is about 549.8426778688.

It can be divided in two parts, 1662 and 32271, that added together give a palindrome (33933).

The spelling of 166232271 in words is "one hundred sixty-six million, two hundred thirty-two thousand, two hundred seventy-one".