11512536545653 has 64 divisors (see below), whose sum is σ = 14766640922880. Its totient is φ = 8816864256000.

The previous prime is 11512536545641. The next prime is 11512536545687. The reversal of 11512536545653 is 35654563521511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11512536545653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11512536545653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512536545753) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9586501 + ... + 10720357.

It is an arithmetic number, because the mean of its divisors is an integer number (230728764420).

Almost surely, 2^{11512536545653} is an apocalyptic number.

11512536545653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11512536545653 is a deficient number, since it is larger than the sum of its proper divisors (3254104377227).

11512536545653 is a wasteful number, since it uses less digits than its factorization.

11512536545653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134038.

The product of its digits is 8100000, while the sum is 52.

The spelling of 11512536545653 in words is "eleven trillion, five hundred twelve billion, five hundred thirty-six million, five hundred forty-five thousand, six hundred fifty-three".