66443108 has 12 divisors (see below), whose sum is σ = 117747840. Its totient is φ = 32800872.

The previous prime is 66443093. The next prime is 66443129. The reversal of 66443108 is 80134466.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104816 + ... + 105447.

It is an arithmetic number, because the mean of its divisors is an integer number (9812320).

Almost surely, 2^66443108 is an apocalyptic number.

It is an amenable number.

66443108 is a deficient number, since it is larger than the sum of its proper divisors (51304732).

66443108 is a wasteful number, since it uses less digits than its factorization.

66443108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210346 (or 210344 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 66443108 is about 8151.2641964299. The cubic root of 66443108 is about 405.0263824708.

The spelling of 66443108 in words is "sixty-six million, four hundred forty-three thousand, one hundred eight".