1111345666889 has 4 divisors (see below), whose sum is σ = 1134991319424. Its totient is φ = 1087700014356.

The previous prime is 1111345666843. The next prime is 1111345666903. The reversal of 1111345666889 is 9886665431111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1111345666889 - 2¹² = 1111345662793 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111345666289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11822826197 + ... + 11822826290.

It is an arithmetic number, because the mean of its divisors is an integer number (283747829856).

Almost surely, 2^{1111345666889} is an apocalyptic number.

It is an amenable number.

1111345666889 is a deficient number, since it is larger than the sum of its proper divisors (23645652535).

1111345666889 is an equidigital number, since it uses as much as digits as its factorization.

1111345666889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23645652534.

The product of its digits is 7464960, while the sum is 59.

The spelling of 1111345666889 in words is "one trillion, one hundred eleven billion, three hundred forty-five million, six hundred sixty-six thousand, eight hundred eighty-nine".