11336555665 has 4 divisors (see below), whose sum is σ = 13603866804. Its totient is φ = 9069244528.

The previous prime is 11336555663. The next prime is 11336555669. The reversal of 11336555665 is 56655563311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56655563311 = 73 ⋅776103607.

It can be written as a sum of positive squares in 2 ways, for example, as 1257198849 + 10079356816 = 35457^2 + 100396^2 .

It is a cyclic number.

It is not a de Polignac number, because 11336555665 - 2¹ = 11336555663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11336555663) 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, 1133655562 + ... + 1133655571.

It is an arithmetic number, because the mean of its divisors is an integer number (3400966701).

Almost surely, 2^11336555665 is an apocalyptic number.

It is an amenable number.

11336555665 is a deficient number, since it is larger than the sum of its proper divisors (2267311139).

11336555665 is an equidigital number, since it uses as much as digits as its factorization.

11336555665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267311138.

The product of its digits is 1215000, while the sum is 46.

The spelling of 11336555665 in words is "eleven billion, three hundred thirty-six million, five hundred fifty-five thousand, six hundred sixty-five".