66008 has 16 divisors (see below), whose sum is σ = 127680. Its totient is φ = 31968.

The previous prime is 65993. The next prime is 66029. The reversal of 66008 is 80066.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 407.

It is an arithmetic number, because the mean of its divisors is an integer number (7980).

2⁶⁶⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

66008 is a deficient number, since it is larger than the sum of its proper divisors (61672).

66008 is a wasteful number, since it uses less digits than its factorization.

66008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 66008 is about 256.9202210804. The cubic root of 66008 is about 40.4140329645.

The spelling of 66008 in words is "sixty-six thousand, eight".