111016663 has 4 divisors (see below), whose sum is σ = 111063960. Its totient is φ = 110969368.

The previous prime is 111016621. The next prime is 111016667. The reversal of 111016663 is 366610111.

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-111016663 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 (111016667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19933 + ... + 24886.

It is an arithmetic number, because the mean of its divisors is an integer number (27765990).

Almost surely, 2^111016663 is an apocalyptic number.

111016663 is a deficient number, since it is larger than the sum of its proper divisors (47297).

111016663 is an equidigital number, since it uses as much as digits as its factorization.

111016663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47296.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 111016663 is about 10536.4445141613. Note that the first 3 decimals coincide. The cubic root of 111016663 is about 480.6136004067.

Adding to 111016663 its reverse (366610111), we get a palindrome (477626774).

The spelling of 111016663 in words is "one hundred eleven million, sixteen thousand, six hundred sixty-three".