11563412553 has 128 divisors (see below), whose sum is σ = 22056038400. Its totient is φ = 5861782080.

The previous prime is 11563412551. The next prime is 11563412561. The reversal of 11563412553 is 35521436511.

11563412553 is a `hidden beast` number, since 1 + 1 + 5 + 63 + 41 + 2 + 553 = 666.

11563412553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11563412553 - 2¹ = 11563412551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11563412551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10816503 + ... + 10817571.

It is an arithmetic number, because the mean of its divisors is an integer number (172312800).

Almost surely, 2^11563412553 is an apocalyptic number.

It is an amenable number.

11563412553 is a deficient number, since it is larger than the sum of its proper divisors (10492625847).

11563412553 is a wasteful number, since it uses less digits than its factorization.

11563412553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161 (or 1133 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 11563412553 in words is "eleven billion, five hundred sixty-three million, four hundred twelve thousand, five hundred fifty-three".