673320363657169 has 2 divisors, whose sum is σ = 673320363657170. Its totient is φ = 673320363657168.

The previous prime is 673320363657083. The next prime is 673320363657191. The reversal of 673320363657169 is 961756363023376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667503391471569 + 5816972185600 = 25836087^2 + 2411840^2 .

It is a cyclic number.

It is not a de Polignac number, because 673320363657169 - 2⁹ = 673320363656657 is a prime.

It is a super-2 number, since 2×673320363657169² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (673320363627169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336660181828584 + 336660181828585.

It is an arithmetic number, because the mean of its divisors is an integer number (336660181828585).

Almost surely, 2^{673320363657169} is an apocalyptic number.

It is an amenable number.

673320363657169 is a deficient number, since it is larger than the sum of its proper divisors (1).

673320363657169 is an equidigital number, since it uses as much as digits as its factorization.

673320363657169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 462944160, while the sum is 67.

The spelling of 673320363657169 in words is "six hundred seventy-three trillion, three hundred twenty billion, three hundred sixty-three million, six hundred fifty-seven thousand, one hundred sixty-nine".