166122325 has 12 divisors (see below), whose sum is σ = 206898340. Its totient is φ = 132312960.

The previous prime is 166122323. The next prime is 166122329. The reversal of 166122325 is 523221661.

It can be written as a sum of positive squares in 6 ways, for example, as 459684 + 165662641 = 678^2 + 12871^2 .

It is not a de Polignac number, because 166122325 - 2¹ = 166122323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166122293 and 166122302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166122323) 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, 8784 + ... + 20233.

Almost surely, 2^166122325 is an apocalyptic number.

It is an amenable number.

166122325 is a deficient number, since it is larger than the sum of its proper divisors (40776015).

166122325 is a wasteful number, since it uses less digits than its factorization.

166122325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29256 (or 29251 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 166122325 is about 12888.8449831628. The cubic root of 166122325 is about 549.7214291777.

Adding to 166122325 its reverse (523221661), we get a palindrome (689343986).

The spelling of 166122325 in words is "one hundred sixty-six million, one hundred twenty-two thousand, three hundred twenty-five".