11512535130644 has 12 divisors (see below), whose sum is σ = 20183106925044. Its totient is φ = 5745933152064.

The previous prime is 11512535130641. The next prime is 11512535130653. The reversal of 11512535130644 is 44603153521511.

It can be written as a sum of positive squares in 2 ways, for example, as 6591183328900 + 4921351801744 = 2567330^2 + 2218412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512535130641) 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 3 ways as a sum of consecutive naturals, for example, 2583600809 + ... + 2583605264.

It is an arithmetic number, because the mean of its divisors is an integer number (1681925577087).

Almost surely, 2^{11512535130644} is an apocalyptic number.

It is an amenable number.

11512535130644 is a deficient number, since it is larger than the sum of its proper divisors (8670571794400).

11512535130644 is a wasteful number, since it uses less digits than its factorization.

11512535130644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167206634 (or 5167206632 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 11512535130644 in words is "eleven trillion, five hundred twelve billion, five hundred thirty-five million, one hundred thirty thousand, six hundred forty-four".