165026606441 has 4 divisors (see below), whose sum is σ = 165881666772. Its totient is φ = 164171546112.

The previous prime is 165026606413. The next prime is 165026606443. The reversal of 165026606441 is 144606620561.

165026606441 = 20484² + 20485² + ... + 20869².

165026606441 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 41951232400 + 123075374041 = 204820^2 + 350821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165026606441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165026606443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427529876 + ... + 427530261.

It is an arithmetic number, because the mean of its divisors is an integer number (41470416693).

Almost surely, 2^165026606441 is an apocalyptic number.

It is an amenable number.

165026606441 is a deficient number, since it is larger than the sum of its proper divisors (855060331).

165026606441 is an equidigital number, since it uses as much as digits as its factorization.

165026606441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855060330.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 165026606441 in words is "one hundred sixty-five billion, twenty-six million, six hundred six thousand, four hundred forty-one".