11510061564 has 12 divisors (see below), whose sum is σ = 26856810344. Its totient is φ = 3836687184.

The previous prime is 11510061539. The next prime is 11510061581. The reversal of 11510061564 is 46516001511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479585887 + ... + 479585910.

Almost surely, 2^11510061564 is an apocalyptic number.

It is an amenable number.

11510061564 is an abundant number, since it is smaller than the sum of its proper divisors (15346748780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11510061564 is a wasteful number, since it uses less digits than its factorization.

11510061564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959171804 (or 959171802 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11510061564 in words is "eleven billion, five hundred ten million, sixty-one thousand, five hundred sixty-four".