6648430205655 has 336 divisors, whose sum is σ = 15119705088000. Its totient is φ = 2786394764160.

The previous prime is 6648430205647. The next prime is 6648430205663. The reversal of 6648430205655 is 5565020348466.

6648430205655 is a `hidden beast` number, since 6 + 6 + 48 + 4 + 30 + 2 + 0 + 565 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (6648430205647) and next prime (6648430205663).

It is not a de Polignac number, because 6648430205655 - 2³ = 6648430205647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 105166746 + ... + 105229944.

Almost surely, 2^{6648430205655} is an apocalyptic number.

6648430205655 is an abundant number, since it is smaller than the sum of its proper divisors (8471274882345).

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

6648430205655 is a wasteful number, since it uses less digits than its factorization.

6648430205655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63286 (or 63264 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 6648430205655 in words is "six trillion, six hundred forty-eight billion, four hundred thirty million, two hundred five thousand, six hundred fifty-five".