66063666080 has 48 divisors (see below), whose sum is σ = 157534100640. Its totient is φ = 26178492672.

The previous prime is 66063666043. The next prime is 66063666091. The reversal of 66063666080 is 8066636066.

66063666080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1912310 + ... + 1946549.

It is an arithmetic number, because the mean of its divisors is an integer number (3281960430).

Almost surely, 2^66063666080 is an apocalyptic number.

It is an amenable number.

66063666080 is an abundant number, since it is smaller than the sum of its proper divisors (91470434560).

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

66063666080 is a wasteful number, since it uses less digits than its factorization.

66063666080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858981 (or 3858973 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 66063666080 in words is "sixty-six billion, sixty-three million, six hundred sixty-six thousand, eighty".