111663065641 has 8 divisors (see below), whose sum is σ = 114688595720. Its totient is φ = 108637936128.

The previous prime is 111663065627. The next prime is 111663065653. The reversal of 111663065641 is 146560366111.

It can be written as a sum of positive squares in 4 ways, for example, as 48398240016 + 63264825625 = 219996^2 + 251525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111663065641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111663065594 and 111663065603.

It is not an unprimeable number, because it can be changed into a prime (111663068641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515515 + ... + 699343.

It is an arithmetic number, because the mean of its divisors is an integer number (14336074465).

Almost surely, 2^111663065641 is an apocalyptic number.

It is an amenable number.

111663065641 is a deficient number, since it is larger than the sum of its proper divisors (3025530079).

111663065641 is a wasteful number, since it uses less digits than its factorization.

111663065641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200283.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 111663065641 in words is "one hundred eleven billion, six hundred sixty-three million, sixty-five thousand, six hundred forty-one".