11540044564 has 24 divisors (see below), whose sum is σ = 21084598080. Its totient is φ = 5516146944.

The previous prime is 11540044513. The next prime is 11540044583. The reversal of 11540044564 is 46544004511.

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 7 ways as a sum of consecutive naturals, for example, 140587 + ... + 206989.

It is an arithmetic number, because the mean of its divisors is an integer number (878524920).

Almost surely, 2^11540044564 is an apocalyptic number.

It is an amenable number.

11540044564 is a deficient number, since it is larger than the sum of its proper divisors (9544553516).

11540044564 is a wasteful number, since it uses less digits than its factorization.

11540044564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68319 (or 68317 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 11540044564 in words is "eleven billion, five hundred forty million, forty-four thousand, five hundred sixty-four".