66670008 has 32 divisors (see below), whose sum is σ = 173923200. Its totient is φ = 21256928.

The previous prime is 66669997. The next prime is 66670013. The reversal of 66670008 is 80007666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59838 + ... + 60941.

It is an arithmetic number, because the mean of its divisors is an integer number (5435100).

Almost surely, 2^66670008 is an apocalyptic number.

It is an amenable number.

66670008 is an abundant number, since it is smaller than the sum of its proper divisors (107253192).

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

66670008 is a wasteful number, since it uses less digits than its factorization.

66670008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120811 (or 120807 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 66670008 is about 8165.1704207567. The cubic root of 66670008 is about 405.4869071465.

The spelling of 66670008 in words is "sixty-six million, six hundred seventy thousand, eight".