66066904 has 32 divisors (see below), whose sum is σ = 129344400. Its totient is φ = 31605120.

The previous prime is 66066899. The next prime is 66066953. The reversal of 66066904 is 40966066.

66066904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 in 7 ways as a sum of consecutive naturals, for example, 16227 + ... + 19885.

Almost surely, 2^66066904 is an apocalyptic number.

It is an amenable number.

66066904 is a deficient number, since it is larger than the sum of its proper divisors (63277496).

66066904 is a wasteful number, since it uses less digits than its factorization.

66066904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 66066904 is about 8128.1550182068. The cubic root of 66066904 is about 404.2605090391.

The spelling of 66066904 in words is "sixty-six million, sixty-six thousand, nine hundred four".