66318848 has 20 divisors (see below), whose sum is σ = 132509190. Its totient is φ = 33159168.

The previous prime is 66318839. The next prime is 66318871. The reversal of 66318848 is 84881366.

66318848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46676224 + 19642624 = 6832^2 + 4432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66318799 and 66318808.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64253 + ... + 65276.

Almost surely, 2^66318848 is an apocalyptic number.

It is an amenable number.

66318848 is a deficient number, since it is larger than the sum of its proper divisors (66190342).

66318848 is an equidigital number, since it uses as much as digits as its factorization.

66318848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129547 (or 129531 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 66318848 is about 8143.6384988530. The cubic root of 66318848 is about 404.7737353225.

The spelling of 66318848 in words is "sixty-six million, three hundred eighteen thousand, eight hundred forty-eight".