166630230 has 128 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 39578112.

The previous prime is 166630187. The next prime is 166630237. The reversal of 166630230 is 32036661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166630194 and 166630203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166630237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100972 + ... + 102608.

It is an arithmetic number, because the mean of its divisors is an integer number (3869775).

Almost surely, 2^166630230 is an apocalyptic number.

166630230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166630230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247665600).

166630230 is an abundant number, since it is smaller than the sum of its proper divisors (328700970).

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

166630230 is a wasteful number, since it uses less digits than its factorization.

166630230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 166630230 is about 12908.5332241893. The cubic root of 166630230 is about 550.2811014854.

Adding to 166630230 its reverse (32036661), we get a palindrome (198666891).

The spelling of 166630230 in words is "one hundred sixty-six million, six hundred thirty thousand, two hundred thirty".