1116666789 has 8 divisors (see below), whose sum is σ = 1701587520. Its totient is φ = 638095296.

The previous prime is 1116666787. The next prime is 1116666797. The reversal of 1116666789 is 9876666111.

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

It is not a de Polignac number, because 1116666789 - 2¹ = 1116666787 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116666781) 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 7 ways as a sum of consecutive naturals, for example, 26587284 + ... + 26587325.

It is an arithmetic number, because the mean of its divisors is an integer number (212698440).

Almost surely, 2^1116666789 is an apocalyptic number.

It is an amenable number.

1116666789 is a deficient number, since it is larger than the sum of its proper divisors (584920731).

1116666789 is an equidigital number, since it uses as much as digits as its factorization.

1116666789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53174619.

The product of its digits is 653184, while the sum is 51.

The square root of 1116666789 is about 33416.5645900353. The cubic root of 1116666789 is about 1037.4675777162.

The spelling of 1116666789 in words is "one billion, one hundred sixteen million, six hundred sixty-six thousand, seven hundred eighty-nine".