66668848 has 40 divisors (see below), whose sum is σ = 134435840. Its totient is φ = 31993920.

The previous prime is 66668843. The next prime is 66668873. The reversal of 66668848 is 84886666.

66668848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66668795 and 66668804.

It is not an unprimeable number, because it can be changed into a prime (66668843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68461 + ... + 69427.

It is an arithmetic number, because the mean of its divisors is an integer number (3360896).

Almost surely, 2^66668848 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 66668848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67217920).

66668848 is an abundant number, since it is smaller than the sum of its proper divisors (67766992).

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

66668848 is a wasteful number, since it uses less digits than its factorization.

66668848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1139 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The square root of 66668848 is about 8165.0993870252. The cubic root of 66668848 is about 405.4845554266.

The spelling of 66668848 in words is "sixty-six million, six hundred sixty-eight thousand, eight hundred forty-eight".