165622116 has 48 divisors (see below), whose sum is σ = 422472960. Its totient is φ = 50082720.

The previous prime is 165622091. The next prime is 165622133. The reversal of 165622116 is 611226561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80695 + ... + 82721.

It is an arithmetic number, because the mean of its divisors is an integer number (8801520).

Almost surely, 2^165622116 is an apocalyptic number.

It is an amenable number.

165622116 is an abundant number, since it is smaller than the sum of its proper divisors (256850844).

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

165622116 is a wasteful number, since it uses less digits than its factorization.

165622116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2662 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 165622116 is about 12869.4256282089. The cubic root of 165622116 is about 549.1691211904.

Adding to 165622116 its reverse (611226561), we get a palindrome (776848677).

The spelling of 165622116 in words is "one hundred sixty-five million, six hundred twenty-two thousand, one hundred sixteen".