111601424441663 has 32 divisors (see below), whose sum is σ = 131695122283200. Its totient is φ = 93577240221696.

The previous prime is 111601424441627. The next prime is 111601424441669. The reversal of 111601424441663 is 366144424106111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111601424441663 - 2⁸ = 111601424441407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111601424441669) 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, 13152845 + ... + 19904777.

It is an arithmetic number, because the mean of its divisors is an integer number (4115472571350).

Almost surely, 2^{111601424441663} is an apocalyptic number.

111601424441663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111601424441663 is a deficient number, since it is larger than the sum of its proper divisors (20093697841537).

111601424441663 is a wasteful number, since it uses less digits than its factorization.

111601424441663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754571.

The product of its (nonzero) digits is 331776, while the sum is 44.

Adding to 111601424441663 its reverse (366144424106111), we get a palindrome (477745848547774).

The spelling of 111601424441663 in words is "one hundred eleven trillion, six hundred one billion, four hundred twenty-four million, four hundred forty-one thousand, six hundred sixty-three".