66003344 has 20 divisors (see below), whose sum is σ = 139507440. Its totient is φ = 30001440.

The previous prime is 66003341. The next prime is 66003347. The reversal of 66003344 is 44330066.

66003344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66003341) and next prime (66003347).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (66003341) 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 3 ways as a sum of consecutive naturals, for example, 187334 + ... + 187685.

It is an arithmetic number, because the mean of its divisors is an integer number (6975372).

Almost surely, 2^66003344 is an apocalyptic number.

It is an amenable number.

66003344 is an abundant number, since it is smaller than the sum of its proper divisors (73504096).

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

66003344 is a wasteful number, since it uses less digits than its factorization.

66003344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375038 (or 375032 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 66003344 is about 8124.2442110020. The cubic root of 66003344 is about 404.1308271523.

The spelling of 66003344 in words is "sixty-six million, three thousand, three hundred forty-four".