11135566777889 has 4 divisors (see below), whose sum is σ = 11135573487024. Its totient is φ = 11135560068756.

The previous prime is 11135566777759. The next prime is 11135566777931. The reversal of 11135566777889 is 98877766553111.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11135566777889 - 2²⁰ = 11135565729313 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 (11135566777589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162994 + ... + 4860420.

It is an arithmetic number, because the mean of its divisors is an integer number (2783893371756).

Almost surely, 2^{11135566777889} is an apocalyptic number.

It is an amenable number.

11135566777889 is a deficient number, since it is larger than the sum of its proper divisors (6709135).

11135566777889 is an equidigital number, since it uses as much as digits as its factorization.

11135566777889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709134.

The product of its digits is 533433600, while the sum is 74.

The spelling of 11135566777889 in words is "eleven trillion, one hundred thirty-five billion, five hundred sixty-six million, seven hundred seventy-seven thousand, eight hundred eighty-nine".