11771901701685 has 24 divisors (see below), whose sum is σ = 20446528277760. Its totient is φ = 6265455678432.

The previous prime is 11771901701653. The next prime is 11771901701699. The reversal of 11771901701685 is 58610710917711.

11771901701685 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 11771901701685 - 2⁵ = 11771901701653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268559005 + ... + 268602834.

It is an arithmetic number, because the mean of its divisors is an integer number (851938678240).

Almost surely, 2^{11771901701685} is an apocalyptic number.

11771901701685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11771901701685 is a deficient number, since it is larger than the sum of its proper divisors (8674626576075).

11771901701685 is a wasteful number, since it uses less digits than its factorization.

11771901701685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537162337 (or 537162334 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 54.

The spelling of 11771901701685 in words is "eleven trillion, seven hundred seventy-one billion, nine hundred one million, seven hundred one thousand, six hundred eighty-five".