66668048 has 20 divisors (see below), whose sum is σ = 129619308. Its totient is φ = 33217920.

The previous prime is 66668029. The next prime is 66668051. The reversal of 66668048 is 84086666.

It can be written as a sum of positive squares in 2 ways, for example, as 55830784 + 10837264 = 7472^2 + 3292^2 .

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, 2423 + ... + 11798.

Almost surely, 2^66668048 is an apocalyptic number.

It is an amenable number.

66668048 is a deficient number, since it is larger than the sum of its proper divisors (62951260).

66668048 is a wasteful number, since it uses less digits than its factorization.

66668048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14522 (or 14516 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 66668048 is about 8165.0503978849. The cubic root of 66668048 is about 405.4829335350.

The spelling of 66668048 in words is "sixty-six million, six hundred sixty-eight thousand, forty-eight".