166660424 has 32 divisors (see below), whose sum is σ = 358966080. Its totient is φ = 71058624.

The previous prime is 166660411. The next prime is 166660447. The reversal of 166660424 is 424066661.

166660424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (11217690).

Almost surely, 2^166660424 is an apocalyptic number.

166660424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166660424 is an abundant number, since it is smaller than the sum of its proper divisors (192305656).

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

166660424 is a wasteful number, since it uses less digits than its factorization.

166660424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15317 (or 15313 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 166660424 is about 12909.7027076537. The cubic root of 166660424 is about 550.3143371196.

The spelling of 166660424 in words is "one hundred sixty-six million, six hundred sixty thousand, four hundred twenty-four".