11511040005436 has 6 divisors (see below), whose sum is σ = 20144320009520. Its totient is φ = 5755520002716.

The previous prime is 11511040005427. The next prime is 11511040005481. The reversal of 11511040005436 is 63450004011511.

It is a junction number, because it is equal to n+sod(n) for n = 11511040005398 and 11511040005407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1438880000676 + ... + 1438880000683.

Almost surely, 2^{11511040005436} is an apocalyptic number.

It is an amenable number.

11511040005436 is a deficient number, since it is larger than the sum of its proper divisors (8633280004084).

11511040005436 is a wasteful number, since it uses less digits than its factorization.

11511040005436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877760001363 (or 2877760001361 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 11511040005436 its reverse (63450004011511), we get a palindrome (74961044016947).

The spelling of 11511040005436 in words is "eleven trillion, five hundred eleven billion, forty million, five thousand, four hundred thirty-six".