66336254323 has 2 divisors, whose sum is σ = 66336254324. Its totient is φ = 66336254322.

The previous prime is 66336254317. The next prime is 66336254357. The reversal of 66336254323 is 32345263366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66336254323 - 2⁵ = 66336254291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66336254323.

It is not a weakly prime, because it can be changed into another prime (66336254123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33168127161 + 33168127162.

It is an arithmetic number, because the mean of its divisors is an integer number (33168127162).

Almost surely, 2^66336254323 is an apocalyptic number.

66336254323 is a deficient number, since it is larger than the sum of its proper divisors (1).

66336254323 is an equidigital number, since it uses as much as digits as its factorization.

66336254323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 43.

The spelling of 66336254323 in words is "sixty-six billion, three hundred thirty-six million, two hundred fifty-four thousand, three hundred twenty-three".