66566008 has 16 divisors (see below), whose sum is σ = 125503560. Its totient is φ = 33098400.

The previous prime is 66565981. The next prime is 66566011. The reversal of 66566008 is 80066566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21538 + ... + 24433.

Almost surely, 2^66566008 is an apocalyptic number.

It is an amenable number.

66566008 is a deficient number, since it is larger than the sum of its proper divisors (58937552).

66566008 is a wasteful number, since it uses less digits than its factorization.

66566008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46158 (or 46154 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 66566008 is about 8158.7994214835. The cubic root of 66566008 is about 405.2759547944.

The spelling of 66566008 in words is "sixty-six million, five hundred sixty-six thousand, eight".