166315552 has 48 divisors (see below), whose sum is σ = 353854872. Its totient is φ = 76492800.

The previous prime is 166315519. The next prime is 166315571. The reversal of 166315552 is 255513661.

166315552 is digitally balanced in base 3, 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 165997456 + 318096 = 12884^2 + 564^2 .

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, 166318 + ... + 167314.

Almost surely, 2^166315552 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 166315552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176927436).

166315552 is an abundant number, since it is smaller than the sum of its proper divisors (187539320).

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

166315552 is a wasteful number, since it uses less digits than its factorization.

166315552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1413 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

The square root of 166315552 is about 12896.3387052295. The cubic root of 166315552 is about 549.9344847582.

The spelling of 166315552 in words is "one hundred sixty-six million, three hundred fifteen thousand, five hundred fifty-two".