166322330 has 16 divisors (see below), whose sum is σ = 299595240. Its totient is φ = 66481152.

The previous prime is 166322287. The next prime is 166322381. The reversal of 166322330 is 33223661.

166322330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 136913401 + 29408929 = 11701^2 + 5423^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166322330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10922 + ... + 21258.

Almost surely, 2^166322330 is an apocalyptic number.

166322330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166322330 is a deficient number, since it is larger than the sum of its proper divisors (133272910).

166322330 is a wasteful number, since it uses less digits than its factorization.

166322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11953.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 166322330 is about 12896.6014903152. The cubic root of 166322330 is about 549.9419553069.

Adding to 166322330 its reverse (33223661), we get a palindrome (199545991).

The spelling of 166322330 in words is "one hundred sixty-six million, three hundred twenty-two thousand, three hundred thirty".