165663112224 has 48 divisors (see below), whose sum is σ = 434907779040. Its totient is φ = 55215690240.

The previous prime is 165663112217. The next prime is 165663112267. The reversal of 165663112224 is 422211366561.

It is a tau number, because it is divible by the number of its divisors (48).

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, 983644 + ... + 1139684.

It is an arithmetic number, because the mean of its divisors is an integer number (9060578730).

Almost surely, 2^165663112224 is an apocalyptic number.

It is an amenable number.

165663112224 is an abundant number, since it is smaller than the sum of its proper divisors (269244666816).

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

165663112224 is a wasteful number, since it uses less digits than its factorization.

165663112224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167113 (or 167105 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

Adding to 165663112224 its reverse (422211366561), we get a palindrome (587874478785).

The spelling of 165663112224 in words is "one hundred sixty-five billion, six hundred sixty-three million, one hundred twelve thousand, two hundred twenty-four".