11665556323 has 8 divisors (see below), whose sum is σ = 12176820000. Its totient is φ = 11154631488.

The previous prime is 11665556297. The next prime is 11665556347. The reversal of 11665556323 is 32365556611.

11665556323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11665556323 - 2⁵ = 11665556291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11665556323.

It is not an unprimeable number, because it can be changed into a prime (11665556423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13048 + ... + 153301.

It is an arithmetic number, because the mean of its divisors is an integer number (1522102500).

Almost surely, 2^11665556323 is an apocalyptic number.

11665556323 is a deficient number, since it is larger than the sum of its proper divisors (511263677).

11665556323 is a wasteful number, since it uses less digits than its factorization.

11665556323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169421.

The product of its digits is 486000, while the sum is 43.

The spelling of 11665556323 in words is "eleven billion, six hundred sixty-five million, five hundred fifty-six thousand, three hundred twenty-three".