166008225 has 48 divisors (see below), whose sum is σ = 292134080. Its totient is φ = 82944000.

The previous prime is 166008211. The next prime is 166008257. The reversal of 166008225 is 522800661.

It is not a de Polignac number, because 166008225 - 2¹⁸ = 165746081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166008192 and 166008201.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 137625 + ... + 138825.

Almost surely, 2^166008225 is an apocalyptic number.

166008225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166008225 is a deficient number, since it is larger than the sum of its proper divisors (126125855).

166008225 is a wasteful number, since it uses less digits than its factorization.

166008225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 166008225 is about 12884.4179146751. The cubic root of 166008225 is about 549.5955428650.

Adding to 166008225 its reverse (522800661), we get a palindrome (688808886).

The spelling of 166008225 in words is "one hundred sixty-six million, eight thousand, two hundred twenty-five".