111601716 has 12 divisors (see below), whose sum is σ = 260404032. Its totient is φ = 37200568.

The previous prime is 111601709. The next prime is 111601759. The reversal of 111601716 is 617106111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4650060 + ... + 4650083.

It is an arithmetic number, because the mean of its divisors is an integer number (21700336).

Almost surely, 2^111601716 is an apocalyptic number.

It is an amenable number.

111601716 is an abundant number, since it is smaller than the sum of its proper divisors (148802316).

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

111601716 is a wasteful number, since it uses less digits than its factorization.

111601716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300150 (or 9300148 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 111601716 is about 10564.1713352255. The cubic root of 111601716 is about 481.4563925877.

Adding to 111601716 its reverse (617106111), we get a palindrome (728707827).

The spelling of 111601716 in words is "one hundred eleven million, six hundred one thousand, seven hundred sixteen".