66604106 has 16 divisors (see below), whose sum is σ = 101865600. Its totient is φ = 32654160.

The previous prime is 66604103. The next prime is 66604117. The reversal of 66604106 is 60140666.

66604106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66604106² = 8872213872118472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66604103) 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 7 ways as a sum of consecutive naturals, for example, 27080 + ... + 29436.

It is an arithmetic number, because the mean of its divisors is an integer number (6366600).

Almost surely, 2^66604106 is an apocalyptic number.

66604106 is a deficient number, since it is larger than the sum of its proper divisors (35261494).

66604106 is a wasteful number, since it uses less digits than its factorization.

66604106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66604106 is about 8161.1338673005. The cubic root of 66604106 is about 405.3532578057.

The spelling of 66604106 in words is "sixty-six million, six hundred four thousand, one hundred six".