166384201 has 3 divisors (see below), whose sum is σ = 166397101. Its totient is φ = 166371302.

The previous prime is 166384199. The next prime is 166384213. The reversal of 166384201 is 102483661.

It is a happy number.

The square root of 166384201 is 12899.

It is a perfect power (a square), and thus also a powerful number.

166384201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 166384201 - 2¹ = 166384199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166384901) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6450 + ... + 19348.

Almost surely, 2^166384201 is an apocalyptic number.

166384201 is the 12899-th square number.

166384201 is the 6450-th centered octagonal number.

It is an amenable number.

166384201 is a deficient number, since it is larger than the sum of its proper divisors (12900).

166384201 is an frugal number, since it uses more digits than its factorization.

166384201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25798 (or 12899 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The cubic root of 166384201 is about 550.0101386561.

The spelling of 166384201 in words is "one hundred sixty-six million, three hundred eighty-four thousand, two hundred one".