66383985162673 has 2 divisors, whose sum is σ = 66383985162674. Its totient is φ = 66383985162672.

The previous prime is 66383985162659. The next prime is 66383985162683. The reversal of 66383985162673 is 37626158938366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46947067314849 + 19436917847824 = 6851793^2 + 4408732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66383985162673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66383985162596 and 66383985162605.

It is not a weakly prime, because it can be changed into another prime (66383985162623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33191992581336 + 33191992581337.

It is an arithmetic number, because the mean of its divisors is an integer number (33191992581337).

Almost surely, 2^{66383985162673} is an apocalyptic number.

It is an amenable number.

66383985162673 is a deficient number, since it is larger than the sum of its proper divisors (1).

66383985162673 is an equidigital number, since it uses as much as digits as its factorization.

66383985162673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1410877440, while the sum is 73.

The spelling of 66383985162673 in words is "sixty-six trillion, three hundred eighty-three billion, nine hundred eighty-five million, one hundred sixty-two thousand, six hundred seventy-three".