165968041 has 4 divisors (see below), whose sum is σ = 170016084. Its totient is φ = 161920000.

The previous prime is 165968039. The next prime is 165968057. The reversal of 165968041 is 140869561.

165968041 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.

It can be written as a sum of positive squares in 2 ways, for example, as 45846441 + 120121600 = 6771^2 + 10960^2 .

It is a cyclic number.

It is not a de Polignac number, because 165968041 - 2¹ = 165968039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165967985 and 165968003.

It is not an unprimeable number, because it can be changed into a prime (165968081) 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, 2023960 + ... + 2024041.

It is an arithmetic number, because the mean of its divisors is an integer number (42504021).

Almost surely, 2^165968041 is an apocalyptic number.

It is an amenable number.

165968041 is a deficient number, since it is larger than the sum of its proper divisors (4048043).

165968041 is an equidigital number, since it uses as much as digits as its factorization.

165968041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048042.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 165968041 is about 12882.8584172923. The cubic root of 165968041 is about 549.5511941999.

The spelling of 165968041 in words is "one hundred sixty-five million, nine hundred sixty-eight thousand, forty-one".