11521654516552 has 16 divisors (see below), whose sum is σ = 21672565574400. Its totient is φ = 5742303696720.

The previous prime is 11521654516523. The next prime is 11521654516553. The reversal of 11521654516552 is 25561545612511.

It is a junction number, because it is equal to n+sod(n) for n = 11521654516496 and 11521654516505.

It is not an unprimeable number, because it can be changed into a prime (11521654516553) 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 3 ways as a sum of consecutive naturals, for example, 2315442552 + ... + 2315447527.

It is an arithmetic number, because the mean of its divisors is an integer number (1354535348400).

Almost surely, 2^{11521654516552} is an apocalyptic number.

It is an amenable number.

11521654516552 is a deficient number, since it is larger than the sum of its proper divisors (10150911057848).

11521654516552 is a wasteful number, since it uses less digits than its factorization.

11521654516552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630890396 (or 4630890392 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 49.

The spelling of 11521654516552 in words is "eleven trillion, five hundred twenty-one billion, six hundred fifty-four million, five hundred sixteen thousand, five hundred fifty-two".