11501533644136 has 16 divisors (see below), whose sum is σ = 21565512765540. Its totient is φ = 5750730240000.

The previous prime is 11501533644067. The next prime is 11501533644197. The reversal of 11501533644136 is 63144633510511.

It can be written as a sum of positive squares in 2 ways, for example, as 11429091921636 + 72441722500 = 3380694^2 + 269150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11501533644092 and 11501533644101.

It is an unprimeable number.

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, 3212751 + ... + 5772766.

Almost surely, 2^{11501533644136} is an apocalyptic number.

It is an amenable number.

11501533644136 is a deficient number, since it is larger than the sum of its proper divisors (10063979121404).

11501533644136 is a wasteful number, since it uses less digits than its factorization.

11501533644136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145524 (or 9145520 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 11501533644136 in words is "eleven trillion, five hundred one billion, five hundred thirty-three million, six hundred forty-four thousand, one hundred thirty-six".