165165005116 has 24 divisors (see below), whose sum is σ = 299022660720. Its totient is φ = 79730284032.

The previous prime is 165165005111. The next prime is 165165005147. The reversal of 165165005116 is 611500561561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165165005111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945655 + ... + 3001201.

It is an arithmetic number, because the mean of its divisors is an integer number (12459277530).

Almost surely, 2^165165005116 is an apocalyptic number.

It is an amenable number.

165165005116 is a deficient number, since it is larger than the sum of its proper divisors (133857655604).

165165005116 is a wasteful number, since it uses less digits than its factorization.

165165005116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81213 (or 81211 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

Adding to 165165005116 its reverse (611500561561), we get a palindrome (776665566677).

The spelling of 165165005116 in words is "one hundred sixty-five billion, one hundred sixty-five million, five thousand, one hundred sixteen".