111554616241 has 4 divisors (see below), whose sum is σ = 112033391652. Its totient is φ = 111075840832.

The previous prime is 111554616211. The next prime is 111554616247. The reversal of 111554616241 is 142616455111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22350250000 + 89204366241 = 149500^2 + 298671^2 .

It is a cyclic number.

It is not a de Polignac number, because 111554616241 - 2⁷ = 111554616113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111554616241.

It is not an unprimeable number, because it can be changed into a prime (111554616247) 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, 239387356 + ... + 239387821.

It is an arithmetic number, because the mean of its divisors is an integer number (28008347913).

Almost surely, 2^111554616241 is an apocalyptic number.

It is an amenable number.

111554616241 is a deficient number, since it is larger than the sum of its proper divisors (478775411).

111554616241 is an equidigital number, since it uses as much as digits as its factorization.

111554616241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478775410.

The product of its digits is 28800, while the sum is 37.

The spelling of 111554616241 in words is "one hundred eleven billion, five hundred fifty-four million, six hundred sixteen thousand, two hundred forty-one".