165222336 has 28 divisors (see below), whose sum is σ = 437151272. Its totient is φ = 55074048.

The previous prime is 165222329. The next prime is 165222389. The reversal of 165222336 is 633222561.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430075 + ... + 430458.

Almost surely, 2^165222336 is an apocalyptic number.

165222336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165222336 is an abundant number, since it is smaller than the sum of its proper divisors (271928936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165222336 is an equidigital number, since it uses as much as digits as its factorization.

165222336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860548 (or 860538 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 165222336 is about 12853.8840822531. The cubic root of 165222336 is about 548.7269022367.

Adding to 165222336 its reverse (633222561), we get a palindrome (798444897).

The spelling of 165222336 in words is "one hundred sixty-five million, two hundred twenty-two thousand, three hundred thirty-six".