66464112907 has 2 divisors, whose sum is σ = 66464112908. Its totient is φ = 66464112906.

The previous prime is 66464112901. The next prime is 66464113063. The reversal of 66464112907 is 70921146466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66464112907 - 2³ = 66464112899 is a prime.

It is not a weakly prime, because it can be changed into another prime (66464112901) 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, 33232056453 + 33232056454.

It is an arithmetic number, because the mean of its divisors is an integer number (33232056454).

Almost surely, 2^66464112907 is an apocalyptic number.

66464112907 is a deficient number, since it is larger than the sum of its proper divisors (1).

66464112907 is an equidigital number, since it uses as much as digits as its factorization.

66464112907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 66464112907 in words is "sixty-six billion, four hundred sixty-four million, one hundred twelve thousand, nine hundred seven".