166327225 has 12 divisors (see below), whose sum is σ = 211043536. Its totient is φ = 129966480.

The previous prime is 166327223. The next prime is 166327243. The reversal of 166327225 is 522723661.

It is not a de Polignac number, because 166327225 - 2¹ = 166327223 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166327223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76287 + ... + 78436.

Almost surely, 2^166327225 is an apocalyptic number.

It is an amenable number.

166327225 is a deficient number, since it is larger than the sum of its proper divisors (44716311).

166327225 is a wasteful number, since it uses less digits than its factorization.

166327225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154776 (or 154771 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 166327225 is about 12896.7912675983. The cubic root of 166327225 is about 549.9473503321.

The spelling of 166327225 in words is "one hundred sixty-six million, three hundred twenty-seven thousand, two hundred twenty-five".