66664467009 has 12 divisors (see below), whose sum is σ = 110049278976. Its totient is φ = 38093981112.

The previous prime is 66664466989. The next prime is 66664467041. The reversal of 66664467009 is 90076446666.

It is not a de Polignac number, because 66664467009 - 2⁹ = 66664466497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66664463009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529083009 + ... + 529083134.

It is an arithmetic number, because the mean of its divisors is an integer number (9170773248).

Almost surely, 2^66664467009 is an apocalyptic number.

It is an amenable number.

66664467009 is a deficient number, since it is larger than the sum of its proper divisors (43384811967).

66664467009 is a wasteful number, since it uses less digits than its factorization.

66664467009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058166156 (or 1058166153 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 66664467009 in words is "sixty-six billion, six hundred sixty-four million, four hundred sixty-seven thousand, nine".