11665847223 has 6 divisors (see below), whose sum is σ = 16850668224. Its totient is φ = 7777231476.

The previous prime is 11665847177. The next prime is 11665847257. The reversal of 11665847223 is 32274856611.

11665847223 is a `hidden beast` number, since 1 + 1 + 66 + 584 + 7 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 11665847223 - 2⁶ = 11665847159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665827223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 648102615 + ... + 648102632.

It is an arithmetic number, because the mean of its divisors is an integer number (2808444704).

Almost surely, 2^11665847223 is an apocalyptic number.

11665847223 is a deficient number, since it is larger than the sum of its proper divisors (5184821001).

11665847223 is a wasteful number, since it uses less digits than its factorization.

11665847223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296205253 (or 1296205250 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 11665847223 in words is "eleven billion, six hundred sixty-five million, eight hundred forty-seven thousand, two hundred twenty-three".