166271914 has 4 divisors (see below), whose sum is σ = 249407874. Its totient is φ = 83135956.

The previous prime is 166271891. The next prime is 166271923. The reversal of 166271914 is 419172661.

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

It can be written as a sum of positive squares in only one way, i.e., 113955625 + 52316289 = 10675^2 + 7233^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41567977 + ... + 41567980.

Almost surely, 2^166271914 is an apocalyptic number.

166271914 is a deficient number, since it is larger than the sum of its proper divisors (83135960).

166271914 is an equidigital number, since it uses as much as digits as its factorization.

166271914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83135959.

The product of its digits is 18144, while the sum is 37.

The square root of 166271914 is about 12894.6467186969. The cubic root of 166271914 is about 549.8863831427.

The spelling of 166271914 in words is "one hundred sixty-six million, two hundred seventy-one thousand, nine hundred fourteen".