166323144 has 64 divisors (see below), whose sum is σ = 449043840. Its totient is φ = 51033600.

The previous prime is 166323133. The next prime is 166323161. The reversal of 166323144 is 441323661.

166323144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187069 + ... + 187955.

It is an arithmetic number, because the mean of its divisors is an integer number (7016310).

Almost surely, 2^166323144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166323144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224521920).

166323144 is an abundant number, since it is smaller than the sum of its proper divisors (282720696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166323144 is a wasteful number, since it uses less digits than its factorization.

166323144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1506 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 166323144 is about 12896.6330489783. The cubic root of 166323144 is about 549.9428524645.

The spelling of 166323144 in words is "one hundred sixty-six million, three hundred twenty-three thousand, one hundred forty-four".