166158234 has 48 divisors (see below), whose sum is σ = 394804800. Its totient is φ = 50086080.

The previous prime is 166158229. The next prime is 166158253. The reversal of 166158234 is 432851661.

It is a happy number.

166158234 is a `hidden beast` number, since 1 + 6 + 615 + 8 + 2 + 34 = 666.

It is a Curzon number.

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, 37294 + ... + 41510.

It is an arithmetic number, because the mean of its divisors is an integer number (8225100).

Almost surely, 2^166158234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166158234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197402400).

166158234 is an abundant number, since it is smaller than the sum of its proper divisors (228646566).

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

166158234 is a wasteful number, since it uses less digits than its factorization.

166158234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435 (or 4432 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 166158234 is about 12890.2379341888. The cubic root of 166158234 is about 549.7610355835.

It can be divided in two parts, 1661 and 58234, that added together give a palindrome (59895).

The spelling of 166158234 in words is "one hundred sixty-six million, one hundred fifty-eight thousand, two hundred thirty-four".