223665406342256 has 40 divisors (see below), whose sum is σ = 465305580260064. Its totient is φ = 103771853803520.

The previous prime is 223665406342247. The next prime is 223665406342331. The reversal of 223665406342256 is 652243604566322.

223665406342256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223665406342256² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5790820745 + ... + 5790859368.

Almost surely, 2^{223665406342256} is an apocalyptic number.

It is an amenable number.

223665406342256 is an abundant number, since it is smaller than the sum of its proper divisors (241640173917808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223665406342256 is a wasteful number, since it uses less digits than its factorization.

223665406342256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11581680209 (or 11581680203 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 56.

The spelling of 223665406342256 in words is "two hundred twenty-three trillion, six hundred sixty-five billion, four hundred six million, three hundred forty-two thousand, two hundred fifty-six".