6666220002648 has 32 divisors (see below), whose sum is σ = 16665613675200. Its totient is φ = 2222064845088.

The previous prime is 6666220002643. The next prime is 6666220002649. The reversal of 6666220002648 is 8462000226666.

It is a super-2 number, since 2×6666220002648² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6666220002597 and 6666220002606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666220002643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10968823 + ... + 11560601.

It is an arithmetic number, because the mean of its divisors is an integer number (520800427350).

Almost surely, 2^{6666220002648} is an apocalyptic number.

It is an amenable number.

6666220002648 is an abundant number, since it is smaller than the sum of its proper divisors (9999393672552).

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

6666220002648 is a wasteful number, since it uses less digits than its factorization.

6666220002648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061151 (or 1061147 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 6666220002648 in words is "six trillion, six hundred sixty-six billion, two hundred twenty million, two thousand, six hundred forty-eight".