165423355 has 8 divisors (see below), whose sum is σ = 200474064. Its totient is φ = 131028000.

The previous prime is 165423341. The next prime is 165423361. The reversal of 165423355 is 553324561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-165423355 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165423355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163281 + ... + 164290.

It is an arithmetic number, because the mean of its divisors is an integer number (25059258).

Almost surely, 2^165423355 is an apocalyptic number.

165423355 is a deficient number, since it is larger than the sum of its proper divisors (35050709).

165423355 is a wasteful number, since it uses less digits than its factorization.

165423355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327677.

The product of its digits is 54000, while the sum is 34.

The square root of 165423355 is about 12861.7010927793. The cubic root of 165423355 is about 548.9493496204.

The spelling of 165423355 in words is "one hundred sixty-five million, four hundred twenty-three thousand, three hundred fifty-five".