11561664053 has 8 divisors (see below), whose sum is σ = 11577202560. Its totient is φ = 11546139280.

The previous prime is 11561664047. The next prime is 11561664067. The reversal of 11561664053 is 35046616511.

11561664053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11561664053 - 2³² = 7266696757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11561663998 and 11561664016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11561664073) 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 7 ways as a sum of consecutive naturals, for example, 4263368 + ... + 4266078.

It is an arithmetic number, because the mean of its divisors is an integer number (1447150320).

Almost surely, 2^11561664053 is an apocalyptic number.

It is an amenable number.

11561664053 is a deficient number, since it is larger than the sum of its proper divisors (15538507).

11561664053 is a wasteful number, since it uses less digits than its factorization.

11561664053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 11561664053 in words is "eleven billion, five hundred sixty-one million, six hundred sixty-four thousand, fifty-three".