166303332 has 72 divisors (see below), whose sum is σ = 454741560. Its totient is φ = 50941440.

The previous prime is 166303301. The next prime is 166303373. The reversal of 166303332 is 233303661.

166303332 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 5875776 + 160427556 = 2424^2 + 12666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166303296 and 166303305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125232 + ... + 126552.

It is an arithmetic number, because the mean of its divisors is an integer number (6315855).

Almost surely, 2^166303332 is an apocalyptic number.

166303332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166303332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227370780).

166303332 is an abundant number, since it is smaller than the sum of its proper divisors (288438228).

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

166303332 is a wasteful number, since it uses less digits than its factorization.

166303332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 166303332 is about 12895.8649186474. The cubic root of 166303332 is about 549.9210156550.

Adding to 166303332 its reverse (233303661), we get a palindrome (399606993).

The spelling of 166303332 in words is "one hundred sixty-six million, three hundred three thousand, three hundred thirty-two".