6466548456646 has 4 divisors (see below), whose sum is σ = 9699822684972. Its totient is φ = 3233274228322.

The previous prime is 6466548456619. The next prime is 6466548456713.

6466548456646 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616637114160 + ... + 1616637114163.

It is an arithmetic number, because the mean of its divisors is an integer number (2424955671243).

Almost surely, 2^{6466548456646} is an apocalyptic number.

6466548456646 is a deficient number, since it is larger than the sum of its proper divisors (3233274228326).

6466548456646 is a wasteful number, since it uses less digits than its factorization.

6466548456646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233274228325.

The product of its digits is 2388787200, while the sum is 70.

The spelling of 6466548456646 in words is "six trillion, four hundred sixty-six billion, five hundred forty-eight million, four hundred fifty-six thousand, six hundred forty-six".