223220165277673 has 2 divisors, whose sum is σ = 223220165277674. Its totient is φ = 223220165277672.

The previous prime is 223220165277643. The next prime is 223220165277737. The reversal of 223220165277673 is 376772561022322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133307991544464 + 89912173733209 = 11545908^2 + 9482203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223220165277673 is a prime.

It is a super-3 number, since 3×223220165277673³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223220165277623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111610082638836 + 111610082638837.

It is an arithmetic number, because the mean of its divisors is an integer number (111610082638837).

Almost surely, 2^{223220165277673} is an apocalyptic number.

It is an amenable number.

223220165277673 is a deficient number, since it is larger than the sum of its proper divisors (1).

223220165277673 is an equidigital number, since it uses as much as digits as its factorization.

223220165277673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 55.

The spelling of 223220165277673 in words is "two hundred twenty-three trillion, two hundred twenty billion, one hundred sixty-five million, two hundred seventy-seven thousand, six hundred seventy-three".