5172228166 has 32 divisors (see below), whose sum is σ = 9007407360. Its totient is φ = 2181689376.

The previous prime is 5172228163. The next prime is 5172228179. The reversal of 5172228166 is 6618222715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172228163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304305 + ... + 320851.

It is an arithmetic number, because the mean of its divisors is an integer number (281481480).

Almost surely, 2^5172228166 is an apocalyptic number.

5172228166 is a deficient number, since it is larger than the sum of its proper divisors (3835179194).

5172228166 is a wasteful number, since it uses less digits than its factorization.

5172228166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16908.

The product of its digits is 80640, while the sum is 40.

The square root of 5172228166 is about 71918.2046911629. The cubic root of 5172228166 is about 1729.3884666275.

The spelling of 5172228166 in words is "five billion, one hundred seventy-two million, two hundred twenty-eight thousand, one hundred sixty-six".