166837227 has 8 divisors (see below), whose sum is σ = 223448064. Its totient is φ = 110725608.

The previous prime is 166837219. The next prime is 166837247. The reversal of 166837227 is 722738661.

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

It is not a de Polignac number, because 166837227 - 2³ = 166837219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166837207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124023 + ... + 125360.

It is an arithmetic number, because the mean of its divisors is an integer number (27931008).

Almost surely, 2^166837227 is an apocalyptic number.

166837227 is a deficient number, since it is larger than the sum of its proper divisors (56610837).

166837227 is a wasteful number, since it uses less digits than its factorization.

166837227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249609.

The product of its digits is 169344, while the sum is 42.

The square root of 166837227 is about 12916.5485715031. The cubic root of 166837227 is about 550.5088700857.

The spelling of 166837227 in words is "one hundred sixty-six million, eight hundred thirty-seven thousand, two hundred twenty-seven".