166303222 has 8 divisors (see below), whose sum is σ = 249863616. Its totient is φ = 83015352.

The previous prime is 166303213. The next prime is 166303223. The reversal of 166303222 is 222303661.

It is a happy number.

166303222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166303223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66598 + ... + 69049.

It is an arithmetic number, because the mean of its divisors is an integer number (31232952).

Almost surely, 2^166303222 is an apocalyptic number.

166303222 is a deficient number, since it is larger than the sum of its proper divisors (83560394).

166303222 is a wasteful number, since it uses less digits than its factorization.

166303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136262.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 166303222 is about 12895.8606537137. The cubic root of 166303222 is about 549.9208944080.

Adding to 166303222 its reverse (222303661), we get a palindrome (388606883).

The spelling of 166303222 in words is "one hundred sixty-six million, three hundred three thousand, two hundred twenty-two".