166331041 has 8 divisors (see below), whose sum is σ = 168303240. Its totient is φ = 164364288.

The previous prime is 166331029. The next prime is 166331047. The reversal of 166331041 is 140133661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 462400 + 165868641 = 680^2 + 12879^2 .

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 166331041 - 2⁹ = 166330529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166330997 and 166331015.

It is not an unprimeable number, because it can be changed into a prime (166331047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117345 + ... + 118753.

It is an arithmetic number, because the mean of its divisors is an integer number (21037905).

Almost surely, 2^166331041 is an apocalyptic number.

It is an amenable number.

166331041 is a deficient number, since it is larger than the sum of its proper divisors (1972199).

166331041 is a wasteful number, since it uses less digits than its factorization.

166331041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 166331041 is about 12896.9392105259. The cubic root of 166331041 is about 549.9515560638.

The spelling of 166331041 in words is "one hundred sixty-six million, three hundred thirty-one thousand, forty-one".