66588975967 has 2 divisors, whose sum is σ = 66588975968. Its totient is φ = 66588975966.

The previous prime is 66588975931. The next prime is 66588975989. The reversal of 66588975967 is 76957988566.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66588975967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66588975893 and 66588975902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66588975997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33294487983 + 33294487984.

It is an arithmetic number, because the mean of its divisors is an integer number (33294487984).

Almost surely, 2^66588975967 is an apocalyptic number.

66588975967 is a deficient number, since it is larger than the sum of its proper divisors (1).

66588975967 is an equidigital number, since it uses as much as digits as its factorization.

66588975967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1371686400, while the sum is 76.

The spelling of 66588975967 in words is "sixty-six billion, five hundred eighty-eight million, nine hundred seventy-five thousand, nine hundred sixty-seven".