66066000066 has 48 divisors (see below), whose sum is σ = 165341655648.
Its totient is φ = 18842352000.
The previous prime is 66066000047. The next prime is 66066000079. The reversal of 66066000066 is 66000066066.
66066000066 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 23 ways as a sum of consecutive naturals, for example, 9810360 + ... + 9817091.
It is an arithmetic number, because the mean of its divisors is an integer number (3444617826).
Almost surely, 266066000066 is an apocalyptic number.
66066000066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.
66066000066 is an abundant number, since it is smaller than the sum of its proper divisors (99275655582).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66066000066 is a wasteful number, since it uses less digits than its factorization.
66066000066 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19627487 (or 19627484 counting only the distinct ones).
The product of its (nonzero) digits is 46656, while the sum is 36.
The spelling of 66066000066 in words is "sixty-six billion, sixty-six million, sixty-six", and thus it is an aban number, an eban number, and an uban number.