165110111101 has 8 divisors (see below), whose sum is σ = 179953189920. Its totient is φ = 150573075312.

The previous prime is 165110111083. The next prime is 165110111167. The reversal of 165110111101 is 101111011561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165110111101 - 2⁵ = 165110111069 is a prime.

It is a super-4 number, since 4×165110111101⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165113111101) 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, 76509631 + ... + 76511788.

It is an arithmetic number, because the mean of its divisors is an integer number (22494148740).

Almost surely, 2^165110111101 is an apocalyptic number.

It is an amenable number.

165110111101 is a deficient number, since it is larger than the sum of its proper divisors (14843078819).

165110111101 is a wasteful number, since it uses less digits than its factorization.

165110111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153021515.

The product of its (nonzero) digits is 30, while the sum is 19.

Adding to 165110111101 its reverse (101111011561), we get a palindrome (266221122662).

The spelling of 165110111101 in words is "one hundred sixty-five billion, one hundred ten million, one hundred eleven thousand, one hundred one".