165331116 has 18 divisors (see below), whose sum is σ = 417920412. Its totient is φ = 55110360.

The previous prime is 165331109. The next prime is 165331123. The reversal of 165331116 is 611133561.

165331116 is a `hidden beast` number, since 1 + 653 + 3 + 1 + 1 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (165331109) and next prime (165331123).

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 165331116.

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 5 ways as a sum of consecutive naturals, for example, 2296230 + ... + 2296301.

Almost surely, 2^165331116 is an apocalyptic number.

It is an amenable number.

165331116 is an abundant number, since it is smaller than the sum of its proper divisors (252589296).

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

165331116 is a wasteful number, since it uses less digits than its factorization.

165331116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592541 (or 4592536 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 165331116 is about 12858.1147918348. The cubic root of 165331116 is about 548.8473004405.

Adding to 165331116 its reverse (611133561), we get a palindrome (776464677).

The spelling of 165331116 in words is "one hundred sixty-five million, three hundred thirty-one thousand, one hundred sixteen".