166245673 has 8 divisors (see below), whose sum is σ = 181558080. Its totient is φ = 150966480.

The previous prime is 166245671. The next prime is 166245689. The reversal of 166245673 is 376542661.

166245673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166245673 - 2¹ = 166245671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166245671) 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, 2823 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (22694760).

Almost surely, 2^166245673 is an apocalyptic number.

It is an amenable number.

166245673 is a deficient number, since it is larger than the sum of its proper divisors (15312407).

166245673 is a wasteful number, since it uses less digits than its factorization.

166245673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16607.

The product of its digits is 181440, while the sum is 40.

The square root of 166245673 is about 12893.6291632728. The cubic root of 166245673 is about 549.8574539680.

The spelling of 166245673 in words is "one hundred sixty-six million, two hundred forty-five thousand, six hundred seventy-three".