65673334169 has 2 divisors, whose sum is σ = 65673334170. Its totient is φ = 65673334168.

The previous prime is 65673334157. The next prime is 65673334183. The reversal of 65673334169 is 96143337656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45796000000 + 19877334169 = 214000^2 + 140987^2 .

It is a cyclic number.

It is not a de Polignac number, because 65673334169 - 2²⁰ = 65672285593 is a prime.

It is a super-2 number, since 2×65673334169² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65673334169.

It is not a weakly prime, because it can be changed into another prime (65673334369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836667084 + 32836667085.

It is an arithmetic number, because the mean of its divisors is an integer number (32836667085).

Almost surely, 2^65673334169 is an apocalyptic number.

It is an amenable number.

65673334169 is a deficient number, since it is larger than the sum of its proper divisors (1).

65673334169 is an equidigital number, since it uses as much as digits as its factorization.

65673334169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 53.

The spelling of 65673334169 in words is "sixty-five billion, six hundred seventy-three million, three hundred thirty-four thousand, one hundred sixty-nine".