66668080088 has 8 divisors (see below), whose sum is σ = 125002650180. Its totient is φ = 33334040040.

The previous prime is 66668080079. The next prime is 66668080139. The reversal of 66668080088 is 88008086666.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4166754998 + ... + 4166755013.

Almost surely, 2^66668080088 is an apocalyptic number.

It is an amenable number.

66668080088 is a deficient number, since it is larger than the sum of its proper divisors (58334570092).

66668080088 is a wasteful number, since it uses less digits than its factorization.

66668080088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333510017 (or 8333510013 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 66668080088 in words is "sixty-six billion, six hundred sixty-eight million, eighty thousand, eighty-eight".