166440230 has 16 divisors (see below), whose sum is σ = 326828304. Its totient is φ = 60523680.

The previous prime is 166440199. The next prime is 166440233. The reversal of 166440230 is 32044661.

166440230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166440230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166440233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756437 + ... + 756656.

It is an arithmetic number, because the mean of its divisors is an integer number (20426769).

Almost surely, 2^166440230 is an apocalyptic number.

166440230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166440230 is a deficient number, since it is larger than the sum of its proper divisors (160388074).

166440230 is a wasteful number, since it uses less digits than its factorization.

166440230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513111.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 166440230 is about 12901.1716522183. The cubic root of 166440230 is about 550.0718693962.

Adding to 166440230 its reverse (32044661), we get a palindrome (198484891).

The spelling of 166440230 in words is "one hundred sixty-six million, four hundred forty thousand, two hundred thirty".