111345002165 has 16 divisors (see below), whose sum is σ = 137161005696. Its totient is φ = 86724657600.

The previous prime is 111345002161. The next prime is 111345002177. The reversal of 111345002165 is 561200543111.

It is not a de Polignac number, because 111345002165 - 2² = 111345002161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111345002161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765746 + ... + 899475.

It is an arithmetic number, because the mean of its divisors is an integer number (8572562856).

Almost surely, 2^111345002165 is an apocalyptic number.

It is an amenable number.

111345002165 is a deficient number, since it is larger than the sum of its proper divisors (25816003531).

111345002165 is a wasteful number, since it uses less digits than its factorization.

111345002165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665580.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 111345002165 its reverse (561200543111), we get a palindrome (672545545276).

The spelling of 111345002165 in words is "one hundred eleven billion, three hundred forty-five million, two thousand, one hundred sixty-five".