66762095399 has 2 divisors, whose sum is σ = 66762095400. Its totient is φ = 66762095398.

The previous prime is 66762095357. The next prime is 66762095459. The reversal of 66762095399 is 99359026766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66762095399 - 2²⁸ = 66493659943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66762095299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33381047699 + 33381047700.

It is an arithmetic number, because the mean of its divisors is an integer number (33381047700).

Almost surely, 2^66762095399 is an apocalyptic number.

66762095399 is a deficient number, since it is larger than the sum of its proper divisors (1).

66762095399 is an equidigital number, since it uses as much as digits as its factorization.

66762095399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33067440, while the sum is 62.

The spelling of 66762095399 in words is "sixty-six billion, seven hundred sixty-two million, ninety-five thousand, three hundred ninety-nine".