6666948 has 72 divisors (see below), whose sum is σ = 18447520. Its totient is φ = 2105352.

The previous prime is 6666943. The next prime is 6666949. The reversal of 6666948 is 8496666.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

Its product of digits (373248) is a multiple of the sum of its prime divisors (24).

It is not an unprimeable number, because it can be changed into a prime (6666943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350883 + ... + 350901.

Almost surely, 2^6666948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9223760).

6666948 is an abundant number, since it is smaller than the sum of its proper divisors (11780572).

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

6666948 is an equidigital number, since it uses as much as digits as its factorization.

6666948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 24 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 6666948 is about 2582.0433768626. The cubic root of 6666948 is about 188.2098531870.

The spelling of 6666948 in words is "six million, six hundred sixty-six thousand, nine hundred forty-eight".