66055208 has 16 divisors (see below), whose sum is σ = 124371060. Its totient is φ = 32889600.

The previous prime is 66055201. The next prime is 66055211. The reversal of 66055208 is 80255066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51294244 + 14760964 = 7162^2 + 3842^2 .

It is not an unprimeable number, because it can be changed into a prime (66055201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15203 + ... + 19058.

Almost surely, 2^66055208 is an apocalyptic number.

It is an amenable number.

66055208 is a deficient number, since it is larger than the sum of its proper divisors (58315852).

66055208 is a wasteful number, since it uses less digits than its factorization.

66055208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34508 (or 34504 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 66055208 is about 8127.4355118943. The cubic root of 66055208 is about 404.2366518597.

The spelling of 66055208 in words is "sixty-six million, fifty-five thousand, two hundred eight".