11612321116 has 72 divisors (see below), whose sum is σ = 22817692800. Its totient is φ = 5165867520.

The previous prime is 11612321113. The next prime is 11612321117. The reversal of 11612321116 is 61112321611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612321111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4839285 + ... + 4841683.

It is an arithmetic number, because the mean of its divisors is an integer number (316912400).

Almost surely, 2^11612321116 is an apocalyptic number.

It is an amenable number.

11612321116 is a deficient number, since it is larger than the sum of its proper divisors (11205371684).

11612321116 is a wasteful number, since it uses less digits than its factorization.

11612321116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2622 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

Adding to 11612321116 its reverse (61112321611), we get a palindrome (72724642727).

The spelling of 11612321116 in words is "eleven billion, six hundred twelve million, three hundred twenty-one thousand, one hundred sixteen".