223595883830861 has 2 divisors, whose sum is σ = 223595883830862. Its totient is φ = 223595883830860.

The previous prime is 223595883830791. The next prime is 223595883830881. The reversal of 223595883830861 is 168038388595322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178855584216100 + 44740299614761 = 13373690^2 + 6688819^2 .

It is a cyclic number.

It is not a de Polignac number, because 223595883830861 - 2²⁶ = 223595816721997 is a prime.

It is a super-2 number, since 2×223595883830861² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223595883830881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111797941915430 + 111797941915431.

It is an arithmetic number, because the mean of its divisors is an integer number (111797941915431).

Almost surely, 2^{223595883830861} is an apocalyptic number.

It is an amenable number.

223595883830861 is a deficient number, since it is larger than the sum of its proper divisors (1).

223595883830861 is an equidigital number, since it uses as much as digits as its factorization.

223595883830861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 597196800, while the sum is 71.

The spelling of 223595883830861 in words is "two hundred twenty-three trillion, five hundred ninety-five billion, eight hundred eighty-three million, eight hundred thirty thousand, eight hundred sixty-one".