11515344521116 has 96 divisors (see below), whose sum is σ = 21420383846400. Its totient is φ = 5405211877824.

The previous prime is 11515344521041. The next prime is 11515344521119. The reversal of 11515344521116 is 61112544351511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515344521119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3490554435 + ... + 3490557733.

It is an arithmetic number, because the mean of its divisors is an integer number (223128998400).

Almost surely, 2^{11515344521116} is an apocalyptic number.

It is an amenable number.

11515344521116 is a deficient number, since it is larger than the sum of its proper divisors (9905039325284).

11515344521116 is a wasteful number, since it uses less digits than its factorization.

11515344521116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5301 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

Adding to 11515344521116 its reverse (61112544351511), we get a palindrome (72627888872627).

The spelling of 11515344521116 in words is "eleven trillion, five hundred fifteen billion, three hundred forty-four million, five hundred twenty-one thousand, one hundred sixteen".