165441424 has 10 divisors (see below), whose sum is σ = 320542790. Its totient is φ = 82720704.

The previous prime is 165441407. The next prime is 165441427. The reversal of 165441424 is 424144561.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 45319824 = 10960^2 + 6732^2 .

It is not an unprimeable number, because it can be changed into a prime (165441427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5170029 + ... + 5170060.

It is an arithmetic number, because the mean of its divisors is an integer number (32054279).

Almost surely, 2^165441424 is an apocalyptic number.

It is an amenable number.

165441424 is a deficient number, since it is larger than the sum of its proper divisors (155101366).

165441424 is a wasteful number, since it uses less digits than its factorization.

165441424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340097 (or 10340091 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 165441424 is about 12862.4035078985. The cubic root of 165441424 is about 548.9693359250.

Adding to 165441424 its reverse (424144561), we get a palindrome (589585985).

The spelling of 165441424 in words is "one hundred sixty-five million, four hundred forty-one thousand, four hundred twenty-four".