165528423 has 6 divisors (see below), whose sum is σ = 239096624. Its totient is φ = 110352276.

The previous prime is 165528413. The next prime is 165528427. The reversal of 165528423 is 324825561.

165528423 is a `hidden beast` number, since 1 + 6 + 552 + 84 + 23 = 666.

It is not a de Polignac number, because 165528423 - 2¹³ = 165520231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165528427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9196015 + ... + 9196032.

Almost surely, 2^165528423 is an apocalyptic number.

165528423 is a deficient number, since it is larger than the sum of its proper divisors (73568201).

165528423 is a wasteful number, since it uses less digits than its factorization.

165528423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18392053 (or 18392050 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 165528423 is about 12865.7849741087. The cubic root of 165528423 is about 549.0655460375.

The spelling of 165528423 in words is "one hundred sixty-five million, five hundred twenty-eight thousand, four hundred twenty-three".