223823221186655 has 16 divisors (see below), whose sum is σ = 269480349425664. Its totient is φ = 178463710939680.

The previous prime is 223823221186651. The next prime is 223823221186709. The reversal of 223823221186655 is 556681122328322.

It is not a de Polignac number, because 223823221186655 - 2² = 223823221186651 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 223823221186655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223823221186651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6825392 + ... + 22231338.

It is an arithmetic number, because the mean of its divisors is an integer number (16842521839104).

Almost surely, 2^{223823221186655} is an apocalyptic number.

223823221186655 is a deficient number, since it is larger than the sum of its proper divisors (45657128239009).

223823221186655 is a wasteful number, since it uses less digits than its factorization.

223823221186655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415606.

The product of its digits is 16588800, while the sum is 56.

The spelling of 223823221186655 in words is "two hundred twenty-three trillion, eight hundred twenty-three billion, two hundred twenty-one million, one hundred eighty-six thousand, six hundred fifty-five".