11609680255 has 4 divisors (see below), whose sum is σ = 13931616312. Its totient is φ = 9287744200.

The previous prime is 11609680241. The next prime is 11609680259. The reversal of 11609680255 is 55208690611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55208690611 = 3541 ⋅15591271.

It is not a de Polignac number, because 11609680255 - 2⁷ = 11609680127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11609680259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160968021 + ... + 1160968030.

It is an arithmetic number, because the mean of its divisors is an integer number (3482904078).

Almost surely, 2^11609680255 is an apocalyptic number.

11609680255 is a deficient number, since it is larger than the sum of its proper divisors (2321936057).

11609680255 is an equidigital number, since it uses as much as digits as its factorization.

11609680255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321936056.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 11609680255 in words is "eleven billion, six hundred nine million, six hundred eighty thousand, two hundred fifty-five".