6666648 has 32 divisors (see below), whose sum is σ = 16753200. Its totient is φ = 2210688.

The previous prime is 6666617. The next prime is 6666679. The reversal of 6666648 is 8466666.

It is an interprime number because it is at equal distance from previous prime (6666617) and next prime (6666679).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 4890 + ... + 6102.

Almost surely, 2^6666648 is an apocalyptic number.

It is an amenable number.

6666648 is an abundant number, since it is smaller than the sum of its proper divisors (10086552).

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

6666648 is a wasteful number, since it uses less digits than its factorization.

6666648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1447 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 6666648 is about 2581.9852826846. The cubic root of 6666648 is about 188.2070301160.

The spelling of 6666648 in words is "six million, six hundred sixty-six thousand, six hundred forty-eight".