66380784482 has 16 divisors (see below), whose sum is σ = 101925114720. Its totient is φ = 32406327072.

The previous prime is 66380784469. The next prime is 66380784487. The reversal of 66380784482 is 28448708366.

It is not an unprimeable number, because it can be changed into a prime (66380784487) 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 in 7 ways as a sum of consecutive naturals, for example, 86894 + ... + 374582.

It is an arithmetic number, because the mean of its divisors is an integer number (6370319670).

Almost surely, 2^66380784482 is an apocalyptic number.

66380784482 is a deficient number, since it is larger than the sum of its proper divisors (35544330238).

66380784482 is a wasteful number, since it uses less digits than its factorization.

66380784482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290417.

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 66380784482 in words is "sixty-six billion, three hundred eighty million, seven hundred eighty-four thousand, four hundred eighty-two".