11555513453 has 32 divisors (see below), whose sum is σ = 13145932800. Its totient is φ = 10066371840.

The previous prime is 11555513443. The next prime is 11555513491. The reversal of 11555513453 is 35431555511.

It is a cyclic number.

It is not a de Polignac number, because 11555513453 - 2¹⁰ = 11555512429 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555513413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5504198 + ... + 5506296.

It is an arithmetic number, because the mean of its divisors is an integer number (410810400).

Almost surely, 2^11555513453 is an apocalyptic number.

It is an amenable number.

11555513453 is a deficient number, since it is larger than the sum of its proper divisors (1590419347).

11555513453 is a wasteful number, since it uses less digits than its factorization.

11555513453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its digits is 112500, while the sum is 38.

The spelling of 11555513453 in words is "eleven billion, five hundred fifty-five million, five hundred thirteen thousand, four hundred fifty-three".