66606084 has 24 divisors (see below), whose sum is σ = 172682720. Its totient is φ = 22201992.

The previous prime is 66606061. The next prime is 66606121. The reversal of 66606084 is 48060666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308254 + ... + 308469.

Almost surely, 2^66606084 is an apocalyptic number.

It is an amenable number.

66606084 is an abundant number, since it is smaller than the sum of its proper divisors (106076636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66606084 is a wasteful number, since it uses less digits than its factorization.

66606084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616736 (or 616728 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 66606084 is about 8161.2550505422. The cubic root of 66606084 is about 405.3572704753.

The spelling of 66606084 in words is "sixty-six million, six hundred six thousand, eighty-four".