223321958077 has 2 divisors, whose sum is σ = 223321958078. Its totient is φ = 223321958076.

The previous prime is 223321958071. The next prime is 223321958099. The reversal of 223321958077 is 770859123322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186515151876 + 36806806201 = 431874^2 + 191851^2 .

It is a cyclic number.

It is not a de Polignac number, because 223321958077 - 2²³ = 223313569469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223321958077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223321958071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111660979038 + 111660979039.

It is an arithmetic number, because the mean of its divisors is an integer number (111660979039).

Almost surely, 2^223321958077 is an apocalyptic number.

It is an amenable number.

223321958077 is a deficient number, since it is larger than the sum of its proper divisors (1).

223321958077 is an equidigital number, since it uses as much as digits as its factorization.

223321958077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 223321958077 in words is "two hundred twenty-three billion, three hundred twenty-one million, nine hundred fifty-eight thousand, seventy-seven".