9446664666449 has 8 divisors (see below), whose sum is σ = 9481889852160. Its totient is φ = 9411471609696.

The previous prime is 9446664666391. The next prime is 9446664666451.

9446664666449 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9446664666449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9446664666469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7443017 + ... + 8619270.

It is an arithmetic number, because the mean of its divisors is an integer number (1185236231520).

Almost surely, 2^{9446664666449} is an apocalyptic number.

It is an amenable number.

9446664666449 is a deficient number, since it is larger than the sum of its proper divisors (35225185711).

9446664666449 is a wasteful number, since it uses less digits than its factorization.

9446664666449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064479.

The product of its digits is 3869835264, while the sum is 74.

The spelling of 9446664666449 in words is "nine trillion, four hundred forty-six billion, six hundred sixty-four million, six hundred sixty-six thousand, four hundred forty-nine".