111616000002 has 128 divisors (see below), whose sum is σ = 269256960000. Its totient is φ = 34069170240.

The previous prime is 111615999991. The next prime is 111616000019. The reversal of 111616000002 is 200000616111.

111616000002 is a `hidden beast` number, since 1 + 1 + 1 + 61 + 600 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53174749 + ... + 53176847.

It is an arithmetic number, because the mean of its divisors is an integer number (2103570000).

Almost surely, 2^111616000002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111616000002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134628480000).

111616000002 is an abundant number, since it is smaller than the sum of its proper divisors (157640959998).

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

111616000002 is a wasteful number, since it uses less digits than its factorization.

111616000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111616000002 its reverse (200000616111), we get a palindrome (311616616113).

The spelling of 111616000002 in words is "one hundred eleven billion, six hundred sixteen million, two", and thus it is an aban number.