11613544523541 has 12 divisors (see below), whose sum is σ = 17184269132940. Its totient is φ = 7553524893120.

The previous prime is 11613544523521. The next prime is 11613544523549. The reversal of 11613544523541 is 14532544531611.

11613544523541 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 3 + 54 + 4 + 52 + 3 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4836524624100 + 6777019899441 = 2199210^2 + 2603271^2 .

It is not a de Polignac number, because 11613544523541 - 2¹⁵ = 11613544490773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11613544523549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15736509826 + ... + 15736510563.

It is an arithmetic number, because the mean of its divisors is an integer number (1432022427745).

Almost surely, 2^{11613544523541} is an apocalyptic number.

It is an amenable number.

11613544523541 is a deficient number, since it is larger than the sum of its proper divisors (5570724609399).

11613544523541 is a wasteful number, since it uses less digits than its factorization.

11613544523541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31473020436 (or 31473020433 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 11613544523541 in words is "eleven trillion, six hundred thirteen billion, five hundred forty-four million, five hundred twenty-three thousand, five hundred forty-one".