111608224553 has 4 divisors (see below), whose sum is σ = 127552256640. Its totient is φ = 95664192468.

The previous prime is 111608224549. The next prime is 111608224583. The reversal of 111608224553 is 355422806111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111608224553 - 2² = 111608224549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111608224583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7972016033 + ... + 7972016046.

It is an arithmetic number, because the mean of its divisors is an integer number (31888064160).

Almost surely, 2^111608224553 is an apocalyptic number.

It is an amenable number.

111608224553 is a deficient number, since it is larger than the sum of its proper divisors (15944032087).

111608224553 is an equidigital number, since it uses as much as digits as its factorization.

111608224553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15944032086.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 111608224553 in words is "one hundred eleven billion, six hundred eight million, two hundred twenty-four thousand, five hundred fifty-three".