166350026225 has 24 divisors (see below), whose sum is σ = 207011259360. Its totient is φ = 132605061120.

The previous prime is 166350026119. The next prime is 166350026239. The reversal of 166350026225 is 522620053661.

It is not a de Polignac number, because 166350026225 - 2¹⁸ = 166349764081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10917062 + ... + 10932288.

It is an arithmetic number, because the mean of its divisors is an integer number (8625469140).

Almost surely, 2^166350026225 is an apocalyptic number.

It is an amenable number.

166350026225 is a deficient number, since it is larger than the sum of its proper divisors (40661233135).

166350026225 is a wasteful number, since it uses less digits than its factorization.

166350026225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16769 (or 16764 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 166350026225 its reverse (522620053661), we get a palindrome (688970079886).

The spelling of 166350026225 in words is "one hundred sixty-six billion, three hundred fifty million, twenty-six thousand, two hundred twenty-five".