165020326 has 32 divisors (see below), whose sum is σ = 274827168. Its totient is φ = 73973760.

The previous prime is 165020321. The next prime is 165020327. The reversal of 165020326 is 623020561.

It is a self number, because there is not a number n which added to its sum of digits gives 165020326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165020321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58566 + ... + 61318.

It is an arithmetic number, because the mean of its divisors is an integer number (8588349).

Almost surely, 2^165020326 is an apocalyptic number.

165020326 is a deficient number, since it is larger than the sum of its proper divisors (109806842).

165020326 is a wasteful number, since it uses less digits than its factorization.

165020326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 165020326 is about 12846.0237427774. The cubic root of 165020326 is about 548.5031763747.

Adding to 165020326 its reverse (623020561), we get a palindrome (788040887).

The spelling of 165020326 in words is "one hundred sixty-five million, twenty thousand, three hundred twenty-six".