11556850649785 has 32 divisors (see below), whose sum is σ = 17098348672512. Its totient is φ = 7317811737600.

The previous prime is 11556850649767. The next prime is 11556850649789. The reversal of 11556850649785 is 58794605865511.

11556850649785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11556850649785 - 2⁹ = 11556850649273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11556850649789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183206941 + ... + 183270010.

It is an arithmetic number, because the mean of its divisors is an integer number (534323396016).

Almost surely, 2^{11556850649785} is an apocalyptic number.

It is an amenable number.

11556850649785 is a deficient number, since it is larger than the sum of its proper divisors (5541498022727).

11556850649785 is a wasteful number, since it uses less digits than its factorization.

11556850649785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366477033.

The product of its (nonzero) digits is 362880000, while the sum is 70.

The spelling of 11556850649785 in words is "eleven trillion, five hundred fifty-six billion, eight hundred fifty million, six hundred forty-nine thousand, seven hundred eighty-five".