11116665133 has 12 divisors (see below), whose sum is σ = 13281136572. Its totient is φ = 9271039680.

The previous prime is 11116665113. The next prime is 11116665151. The reversal of 11116665133 is 33156661111.

It can be written as a sum of positive squares in 2 ways, for example, as 9612233764 + 1504431369 = 98042^2 + 38787^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11116665133 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 (11116665113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3064008 + ... + 3067633.

It is an arithmetic number, because the mean of its divisors is an integer number (1106761381).

Almost surely, 2^11116665133 is an apocalyptic number.

It is an amenable number.

11116665133 is a deficient number, since it is larger than the sum of its proper divisors (2164471439).

11116665133 is an equidigital number, since it uses as much as digits as its factorization.

11116665133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131692 (or 6131685 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The spelling of 11116665133 in words is "eleven billion, one hundred sixteen million, six hundred sixty-five thousand, one hundred thirty-three".