666408848 has 20 divisors (see below), whose sum is σ = 1475619840. Its totient is φ = 285603744.

The previous prime is 666408761. The next prime is 666408859. The reversal of 666408848 is 848804666.

666408848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 666408796 and 666408805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2974928 + ... + 2975151.

It is an arithmetic number, because the mean of its divisors is an integer number (73780992).

Almost surely, 2^666408848 is an apocalyptic number.

It is an amenable number.

666408848 is an abundant number, since it is smaller than the sum of its proper divisors (809210992).

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

666408848 is a wasteful number, since it uses less digits than its factorization.

666408848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950094 (or 5950088 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The square root of 666408848 is about 25814.8958549129. The cubic root of 666408848 is about 873.4678375410.

The spelling of 666408848 in words is "six hundred sixty-six million, four hundred eight thousand, eight hundred forty-eight".