223646313377 has 2 divisors, whose sum is σ = 223646313378. Its totient is φ = 223646313376.

The previous prime is 223646313361. The next prime is 223646313391. The reversal of 223646313377 is 773313646322.

223646313377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178279017361 + 45367296016 = 422231^2 + 212996^2 .

It is a cyclic number.

It is not a de Polignac number, because 223646313377 - 2⁴ = 223646313361 is a prime.

It is not a weakly prime, because it can be changed into another prime (223646313677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111823156688 + 111823156689.

It is an arithmetic number, because the mean of its divisors is an integer number (111823156689).

Almost surely, 2^223646313377 is an apocalyptic number.

It is an amenable number.

223646313377 is a deficient number, since it is larger than the sum of its proper divisors (1).

223646313377 is an equidigital number, since it uses as much as digits as its factorization.

223646313377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 47.

Adding to 223646313377 its reverse (773313646322), we get a palindrome (996959959699).

The spelling of 223646313377 in words is "two hundred twenty-three billion, six hundred forty-six million, three hundred thirteen thousand, three hundred seventy-seven".