166453361 has 4 divisors (see below), whose sum is σ = 166728192. Its totient is φ = 166178532.

The previous prime is 166453333. The next prime is 166453363. The reversal of 166453361 is 163354661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166453361 - 2⁶ = 166453297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166453363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136505 + ... + 137718.

It is an arithmetic number, because the mean of its divisors is an integer number (41682048).

Almost surely, 2^166453361 is an apocalyptic number.

It is an amenable number.

166453361 is a deficient number, since it is larger than the sum of its proper divisors (274831).

166453361 is an equidigital number, since it uses as much as digits as its factorization.

166453361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274830.

The product of its digits is 38880, while the sum is 35.

The square root of 166453361 is about 12901.6805494478. The cubic root of 166453361 is about 550.0863346565.

The spelling of 166453361 in words is "one hundred sixty-six million, four hundred fifty-three thousand, three hundred sixty-one".