111663608963 has 4 divisors (see below), whose sum is σ = 111700020120. Its totient is φ = 111627197808.

The previous prime is 111663608941. The next prime is 111663608971. The reversal of 111663608963 is 369806366111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111663608963 is a prime.

It is a super-3 number, since 3×111663608963³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111663608923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18200978 + ... + 18207111.

It is an arithmetic number, because the mean of its divisors is an integer number (27925005030).

Almost surely, 2^111663608963 is an apocalyptic number.

111663608963 is a deficient number, since it is larger than the sum of its proper divisors (36411157).

111663608963 is an equidigital number, since it uses as much as digits as its factorization.

111663608963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36411156.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 111663608963 in words is "one hundred eleven billion, six hundred sixty-three million, six hundred eight thousand, nine hundred sixty-three".