111516120606 has 64 divisors (see below), whose sum is σ = 249178747392. Its totient is φ = 32986800000.

The previous prime is 111516120589. The next prime is 111516120607. The reversal of 111516120606 is 606021615111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111516120607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355476 + ... + 591096.

It is an arithmetic number, because the mean of its divisors is an integer number (3893417928).

Almost surely, 2^111516120606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111516120606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124589373696).

111516120606 is an abundant number, since it is smaller than the sum of its proper divisors (137662626786).

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

111516120606 is a wasteful number, since it uses less digits than its factorization.

111516120606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235809.

The product of its (nonzero) digits is 2160, while the sum is 30.

Adding to 111516120606 its reverse (606021615111), we get a palindrome (717537735717).

The spelling of 111516120606 in words is "one hundred eleven billion, five hundred sixteen million, one hundred twenty thousand, six hundred six".