11615560320544 has 24 divisors (see below), whose sum is σ = 22869369064080. Its totient is φ = 5807466590016.

The previous prime is 11615560320487. The next prime is 11615560320563. The reversal of 11615560320544 is 44502306551611.

It is a self number, because there is not a number n which added to its sum of digits gives 11615560320544.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9196554 + ... + 10383049.

It is an arithmetic number, because the mean of its divisors is an integer number (952890377670).

Almost surely, 2^{11615560320544} is an apocalyptic number.

It is an amenable number.

11615560320544 is a deficient number, since it is larger than the sum of its proper divisors (11253808743536).

11615560320544 is a wasteful number, since it uses less digits than its factorization.

11615560320544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19598152 (or 19598144 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 11615560320544 in words is "eleven trillion, six hundred fifteen billion, five hundred sixty million, three hundred twenty thousand, five hundred forty-four".