66480666080 has 48 divisors (see below), whose sum is σ = 158585472864. Its totient is φ = 26334082560.

The previous prime is 66480666071. The next prime is 66480666097. The reversal of 66480666080 is 8066608466.

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, 2000531 + ... + 2033490.

It is an arithmetic number, because the mean of its divisors is an integer number (3303864018).

Almost surely, 2^66480666080 is an apocalyptic number.

It is an amenable number.

66480666080 is an abundant number, since it is smaller than the sum of its proper divisors (92104806784).

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

66480666080 is a wasteful number, since it uses less digits than its factorization.

66480666080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034139 (or 4034131 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 66480666080 in words is "sixty-six billion, four hundred eighty million, six hundred sixty-six thousand, eighty".