223711909939456 has 18 divisors (see below), whose sum is σ = 446549945231222. Its totient is φ = 111855954969600.

The previous prime is 223711909939447. The next prime is 223711909939457. The reversal of 223711909939456 is 654939909117322.

It is a happy number.

223711909939456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 196966628870400 + 26745281069056 = 14034480^2 + 5171584^2 .

It is not an unprimeable number, because it can be changed into a prime (223711909939457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436937323845 + ... + 436937324356.

Almost surely, 2^{223711909939456} is an apocalyptic number.

It is an amenable number.

223711909939456 is a deficient number, since it is larger than the sum of its proper divisors (222838035291766).

223711909939456 is an frugal number, since it uses more digits than its factorization.

223711909939456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873874648217 (or 873874648203 counting only the distinct ones).

The product of its (nonzero) digits is 198404640, while the sum is 70.

The spelling of 223711909939456 in words is "two hundred twenty-three trillion, seven hundred eleven billion, nine hundred nine million, nine hundred thirty-nine thousand, four hundred fifty-six".