10805728655 has 16 divisors (see below), whose sum is σ = 13025344320. Its totient is φ = 8605655808.

The previous prime is 10805728643. The next prime is 10805728663. The reversal of 10805728655 is 55682750801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10805728655 - 2⁴ = 10805728639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2355494 + ... + 2360076.

It is an arithmetic number, because the mean of its divisors is an integer number (814084020).

Almost surely, 2^10805728655 is an apocalyptic number.

10805728655 is a deficient number, since it is larger than the sum of its proper divisors (2219615665).

10805728655 is a wasteful number, since it uses less digits than its factorization.

10805728655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 10805728655 in words is "ten billion, eight hundred five million, seven hundred twenty-eight thousand, six hundred fifty-five".