11665005560506 has 4 divisors (see below), whose sum is σ = 17497508340762. Its totient is φ = 5832502780252.

The previous prime is 11665005560477. The next prime is 11665005560519. The reversal of 11665005560506 is 60506550056611.

11665005560506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9149263800625 + 2515741759881 = 3024775^2 + 1586109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2916251390125 + ... + 2916251390128.

Almost surely, 2^{11665005560506} is an apocalyptic number.

11665005560506 is a deficient number, since it is larger than the sum of its proper divisors (5832502780256).

11665005560506 is an equidigital number, since it uses as much as digits as its factorization.

11665005560506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832502780255.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 11665005560506 in words is "eleven trillion, six hundred sixty-five billion, five million, five hundred sixty thousand, five hundred six".