11715340565 has 16 divisors (see below), whose sum is σ = 14156839488. Its totient is φ = 9306752256.

The previous prime is 11715340519. The next prime is 11715340597. The reversal of 11715340565 is 56504351711.

It is a happy number.

11715340565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11715340565 - 2¹⁸ = 11715078421 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1051514 + ... + 1062596.

It is an arithmetic number, because the mean of its divisors is an integer number (884802468).

Almost surely, 2^11715340565 is an apocalyptic number.

It is an amenable number.

11715340565 is a deficient number, since it is larger than the sum of its proper divisors (2441498923).

11715340565 is a wasteful number, since it uses less digits than its factorization.

11715340565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 11715340565 in words is "eleven billion, seven hundred fifteen million, three hundred forty thousand, five hundred sixty-five".