223065621593 has 2 divisors, whose sum is σ = 223065621594. Its totient is φ = 223065621592.

The previous prime is 223065621563. The next prime is 223065621619. The reversal of 223065621593 is 395126560322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210486428944 + 12579192649 = 458788^2 + 112157^2 .

It is a cyclic number.

It is not a de Polignac number, because 223065621593 - 2²⁴ = 223048844377 is a prime.

It is not a weakly prime, because it can be changed into another prime (223065621523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111532810796 + 111532810797.

It is an arithmetic number, because the mean of its divisors is an integer number (111532810797).

Almost surely, 2^223065621593 is an apocalyptic number.

It is an amenable number.

223065621593 is a deficient number, since it is larger than the sum of its proper divisors (1).

223065621593 is an equidigital number, since it uses as much as digits as its factorization.

223065621593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 223065621593 in words is "two hundred twenty-three billion, sixty-five million, six hundred twenty-one thousand, five hundred ninety-three".