66853312 has 14 divisors (see below), whose sum is σ = 132662168. Its totient is φ = 33426624.

The previous prime is 66853307. The next prime is 66853331. The reversal of 66853312 is 21335866.

66853312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

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, 522228 + ... + 522355.

Almost surely, 2^66853312 is an apocalyptic number.

It is an amenable number.

66853312 is a deficient number, since it is larger than the sum of its proper divisors (65808856).

66853312 is a wasteful number, since it uses less digits than its factorization.

66853312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044595 (or 1044585 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 66853312 is about 8176.3874663570. The cubic root of 66853312 is about 405.8581853219.

The spelling of 66853312 in words is "sixty-six million, eight hundred fifty-three thousand, three hundred twelve".