166324441 has 8 divisors (see below), whose sum is σ = 171788040. Its totient is φ = 160947072.

The previous prime is 166324429. The next prime is 166324471. The reversal of 166324441 is 144423661.

It can be written as a sum of positive squares in 4 ways, for example, as 41332041 + 124992400 = 6429^2 + 11180^2 .

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 166324441 - 2⁷ = 166324313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166324471) 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, 17626 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (21473505).

Almost surely, 2^166324441 is an apocalyptic number.

It is an amenable number.

166324441 is a deficient number, since it is larger than the sum of its proper divisors (5463599).

166324441 is an equidigital number, since it uses as much as digits as its factorization.

166324441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43115.

The product of its digits is 13824, while the sum is 31.

The square root of 166324441 is about 12896.6833333226. The cubic root of 166324441 is about 549.9442819590.

The spelling of 166324441 in words is "one hundred sixty-six million, three hundred twenty-four thousand, four hundred forty-one".