111165005616 has 120 divisors (see below), whose sum is σ = 334704631104. Its totient is φ = 31700350080.

The previous prime is 111165005603. The next prime is 111165005617. The reversal of 111165005616 is 616500561111.

It is a super-3 number, since 3×111165005616³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111165005617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184911 + ... + 1275281.

Almost surely, 2^111165005616 is an apocalyptic number.

111165005616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111165005616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167352315552).

111165005616 is an abundant number, since it is smaller than the sum of its proper divisors (223539625488).

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

111165005616 is a wasteful number, since it uses less digits than its factorization.

111165005616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90919 (or 90906 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

Adding to 111165005616 its reverse (616500561111), we get a palindrome (727665566727).

The spelling of 111165005616 in words is "one hundred eleven billion, one hundred sixty-five million, five thousand, six hundred sixteen".