66451103339 has 2 divisors, whose sum is σ = 66451103340. Its totient is φ = 66451103338.

The previous prime is 66451103321. The next prime is 66451103387. The reversal of 66451103339 is 93330115466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66451103339 - 2²⁸ = 66182667883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66451103296 and 66451103305.

It is not a weakly prime, because it can be changed into another prime (66451103309) 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, 33225551669 + 33225551670.

It is an arithmetic number, because the mean of its divisors is an integer number (33225551670).

Almost surely, 2^66451103339 is an apocalyptic number.

66451103339 is a deficient number, since it is larger than the sum of its proper divisors (1).

66451103339 is an equidigital number, since it uses as much as digits as its factorization.

66451103339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 66451103339 in words is "sixty-six billion, four hundred fifty-one million, one hundred three thousand, three hundred thirty-nine".