66083668 has 12 divisors (see below), whose sum is σ = 132167392. Its totient is φ = 28321560.

The previous prime is 66083659. The next prime is 66083671. The reversal of 66083668 is 86638066.

66083668 is an admirable 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, 1180038 + ... + 1180093.

Almost surely, 2^66083668 is an apocalyptic number.

It is an amenable number.

66083668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66083668 is a wasteful number, since it uses less digits than its factorization.

66083668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360142 (or 2360140 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 66083668 is about 8129.1861831305. The cubic root of 66083668 is about 404.2946988762.

The spelling of 66083668 in words is "sixty-six million, eighty-three thousand, six hundred sixty-eight".