6646262424464 has 40 divisors (see below), whose sum is σ = 13868016707832. Its totient is φ = 3067431736320.

The previous prime is 6646262424409. The next prime is 6646262424521. The reversal of 6646262424464 is 4644242626466.

It can be written as a sum of positive squares in 4 ways, for example, as 2653074064 + 6643609350400 = 51508^2 + 2577520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8780462 + ... + 9507314.

Almost surely, 2^{6646262424464} is an apocalyptic number.

It is an amenable number.

6646262424464 is an abundant number, since it is smaller than the sum of its proper divisors (7221754283368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6646262424464 is a wasteful number, since it uses less digits than its factorization.

6646262424464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770835 (or 770829 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 56.

The spelling of 6646262424464 in words is "six trillion, six hundred forty-six billion, two hundred sixty-two million, four hundred twenty-four thousand, four hundred sixty-four".