11665116056 has 16 divisors (see below), whose sum is σ = 23860464840. Its totient is φ = 5302325440.

The previous prime is 11665116053. The next prime is 11665116079. The reversal of 11665116056 is 65061156611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665116053) 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, 66278981 + ... + 66279156.

Almost surely, 2^11665116056 is an apocalyptic number.

It is an amenable number.

11665116056 is an abundant number, since it is smaller than the sum of its proper divisors (12195348784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11665116056 is a wasteful number, since it uses less digits than its factorization.

11665116056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132558154 (or 132558150 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

It can be divided in two parts, 11665 and 116056, that added together give a palindrome (127721).

The spelling of 11665116056 in words is "eleven billion, six hundred sixty-five million, one hundred sixteen thousand, fifty-six".