11543413563 has 24 divisors (see below), whose sum is σ = 18237173760. Its totient is φ = 6977718960.

The previous prime is 11543413481. The next prime is 11543413573. The reversal of 11543413563 is 36531434511.

11543413563 is a `hidden beast` number, since 1 + 1 + 54 + 3 + 41 + 3 + 563 = 666.

It is not a de Polignac number, because 11543413563 - 2²⁰ = 11542364987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11543413573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114303 + ... + 190136.

It is an arithmetic number, because the mean of its divisors is an integer number (759882240).

Almost surely, 2^11543413563 is an apocalyptic number.

11543413563 is a deficient number, since it is larger than the sum of its proper divisors (6693760197).

11543413563 is a wasteful number, since it uses less digits than its factorization.

11543413563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304839 (or 304836 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 11543413563 in words is "eleven billion, five hundred forty-three million, four hundred thirteen thousand, five hundred sixty-three".