111366310645 has 4 divisors (see below), whose sum is σ = 133639572780. Its totient is φ = 89093048512.

The previous prime is 111366310607. The next prime is 111366310681. The reversal of 111366310645 is 546013663111.

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 43845847236 + 67520463409 = 209394^2 + 259847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111366310645 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 11136631060 + ... + 11136631069.

It is an arithmetic number, because the mean of its divisors is an integer number (33409893195).

Almost surely, 2^111366310645 is an apocalyptic number.

It is an amenable number.

111366310645 is a deficient number, since it is larger than the sum of its proper divisors (22273262135).

111366310645 is an equidigital number, since it uses as much as digits as its factorization.

111366310645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22273262134.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 111366310645 its reverse (546013663111), we get a palindrome (657379973756).

The spelling of 111366310645 in words is "one hundred eleven billion, three hundred sixty-six million, three hundred ten thousand, six hundred forty-five".