111450535688 has 108 divisors (see below), whose sum is σ = 227992900695. Its totient is φ = 51064931840.

The previous prime is 111450535613. The next prime is 111450535697. The reversal of 111450535688 is 886535054111.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 104020440484 + 7430095204 = 322522^2 + 86198^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=236062.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 850767383 + ... + 850767513.

Almost surely, 2^111450535688 is an apocalyptic number.

It is an amenable number.

111450535688 is an abundant number, since it is smaller than the sum of its proper divisors (116542365007).

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

111450535688 is an equidigital number, since it uses as much as digits as its factorization.

111450535688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 47.

Adding to 111450535688 its reverse (886535054111), we get a palindrome (997985589799).

The spelling of 111450535688 in words is "one hundred eleven billion, four hundred fifty million, five hundred thirty-five thousand, six hundred eighty-eight".