166225026 has 16 divisors (see below), whose sum is σ = 362672928. Its totient is φ = 50371200.

The previous prime is 166224967. The next prime is 166225027. The reversal of 166225026 is 620522661.

166225026 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166224984 and 166225002.

It is not an unprimeable number, because it can be changed into a prime (166225027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259215 + ... + 1259346.

It is an arithmetic number, because the mean of its divisors is an integer number (22667058).

Almost surely, 2^166225026 is an apocalyptic number.

166225026 is an abundant number, since it is smaller than the sum of its proper divisors (196447902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166225026 is a wasteful number, since it uses less digits than its factorization.

166225026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518577.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 166225026 is about 12892.8284716737. The cubic root of 166225026 is about 549.8346897126.

Adding to 166225026 its reverse (620522661), we get a palindrome (786747687).

The spelling of 166225026 in words is "one hundred sixty-six million, two hundred twenty-five thousand, twenty-six".