66055606 has 16 divisors (see below), whose sum is σ = 102693888. Its totient is φ = 31833000.

The previous prime is 66055603. The next prime is 66055607. The reversal of 66055606 is 60655066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66055603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14281 + ... + 18331.

It is an arithmetic number, because the mean of its divisors is an integer number (6418368).

Almost surely, 2^66055606 is an apocalyptic number.

66055606 is a deficient number, since it is larger than the sum of its proper divisors (36638282).

66055606 is a wasteful number, since it uses less digits than its factorization.

66055606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 66055606 is about 8127.4599968256. The cubic root of 66055606 is about 404.2374637354.

The spelling of 66055606 in words is "sixty-six million, fifty-five thousand, six hundred six".