66113247719 has 2 divisors, whose sum is σ = 66113247720. Its totient is φ = 66113247718.

The previous prime is 66113247701. The next prime is 66113247731. The reversal of 66113247719 is 91774231166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66113247719 - 2¹⁶ = 66113182183 is a prime.

It is a super-2 number, since 2×66113247719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66113247019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33056623859 + 33056623860.

It is an arithmetic number, because the mean of its divisors is an integer number (33056623860).

Almost surely, 2^66113247719 is an apocalyptic number.

66113247719 is a deficient number, since it is larger than the sum of its proper divisors (1).

66113247719 is an equidigital number, since it uses as much as digits as its factorization.

66113247719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The spelling of 66113247719 in words is "sixty-six billion, one hundred thirteen million, two hundred forty-seven thousand, seven hundred nineteen".