66474208 has 12 divisors (see below), whose sum is σ = 130871160. Its totient is φ = 33237088.

The previous prime is 66474193. The next prime is 66474211. The reversal of 66474208 is 80247466.

66474208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1038628 + ... + 1038691.

It is an arithmetic number, because the mean of its divisors is an integer number (10905930).

Almost surely, 2^66474208 is an apocalyptic number.

It is an amenable number.

66474208 is a deficient number, since it is larger than the sum of its proper divisors (64396952).

66474208 is a wasteful number, since it uses less digits than its factorization.

66474208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077329 (or 2077321 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 66474208 is about 8153.1716527987. The cubic root of 66474208 is about 405.0895661280.

The spelling of 66474208 in words is "sixty-six million, four hundred seventy-four thousand, two hundred eight".