66973189395283 has 2 divisors, whose sum is σ = 66973189395284. Its totient is φ = 66973189395282.

The previous prime is 66973189395271. The next prime is 66973189395289. The reversal of 66973189395283 is 38259398137966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66973189395283 - 2²¹ = 66973187298131 is a prime.

It is not a weakly prime, because it can be changed into another prime (66973189395289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33486594697641 + 33486594697642.

It is an arithmetic number, because the mean of its divisors is an integer number (33486594697642).

Almost surely, 2^{66973189395283} is an apocalyptic number.

66973189395283 is a deficient number, since it is larger than the sum of its proper divisors (1).

66973189395283 is an equidigital number, since it uses as much as digits as its factorization.

66973189395283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3174474240, while the sum is 79.

The spelling of 66973189395283 in words is "sixty-six trillion, nine hundred seventy-three billion, one hundred eighty-nine million, three hundred ninety-five thousand, two hundred eighty-three".