11516116531450 has 48 divisors (see below), whose sum is σ = 21518536582656. Its totient is φ = 4585281825600.

The previous prime is 11516116531397. The next prime is 11516116531459. The reversal of 11516116531450 is 5413561161511.

It is not an unprimeable number, because it can be changed into a prime (11516116531459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14560384 + ... + 15330916.

It is an arithmetic number, because the mean of its divisors is an integer number (448302845472).

Almost surely, 2^{11516116531450} is an apocalyptic number.

11516116531450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11516116531450 is a deficient number, since it is larger than the sum of its proper divisors (10002420051206).

11516116531450 is a wasteful number, since it uses less digits than its factorization.

11516116531450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771919 (or 771914 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 40.

Adding to 11516116531450 its reverse (5413561161511), we get a palindrome (16929677692961).

The spelling of 11516116531450 in words is "eleven trillion, five hundred sixteen billion, one hundred sixteen million, five hundred thirty-one thousand, four hundred fifty".