166822318 has 16 divisors (see below), whose sum is σ = 283666320. Its totient is φ = 72942336.

The previous prime is 166822303. The next prime is 166822319. The reversal of 166822318 is 813228661.

It is a happy number.

166822318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166822319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168355 + ... + 169342.

It is an arithmetic number, because the mean of its divisors is an integer number (17729145).

Almost surely, 2^166822318 is an apocalyptic number.

166822318 is a deficient number, since it is larger than the sum of its proper divisors (116844002).

166822318 is a wasteful number, since it uses less digits than its factorization.

166822318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337731.

The product of its digits is 27648, while the sum is 37.

The square root of 166822318 is about 12915.9714307519. The cubic root of 166822318 is about 550.4924713051.

The spelling of 166822318 in words is "one hundred sixty-six million, eight hundred twenty-two thousand, three hundred eighteen".