668078048 has 24 divisors (see below), whose sum is σ = 1434850200. Its totient is φ = 303671680.

The previous prime is 668078041. The next prime is 668078051. The reversal of 668078048 is 840870866.

It is a happy number.

668078048 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 = 668077993 and 668078011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668078041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948623 + ... + 949326.

It is an arithmetic number, because the mean of its divisors is an integer number (59785425).

Almost surely, 2^668078048 is an apocalyptic number.

It is an amenable number.

668078048 is an abundant number, since it is smaller than the sum of its proper divisors (766772152).

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

668078048 is a wasteful number, since it uses less digits than its factorization.

668078048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897970 (or 1897962 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 668078048 is about 25847.2058064310. The cubic root of 668078048 is about 874.1965077853.

The spelling of 668078048 in words is "six hundred sixty-eight million, seventy-eight thousand, forty-eight".