66066066000055 has 12 divisors (see below), whose sum is σ = 87141687055416. Its totient is φ = 48048047999600.

The previous prime is 66066066000019. The next prime is 66066066000059. The reversal of 66066066000055 is 55000066066066.

It is not a de Polignac number, because 66066066000055 - 2¹⁷ = 66066065868983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66066065999969 and 66066066000014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066066000059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54600053941 + ... + 54600055150.

It is an arithmetic number, because the mean of its divisors is an integer number (7261807254618).

Almost surely, 2^{66066066000055} is an apocalyptic number.

66066066000055 is a deficient number, since it is larger than the sum of its proper divisors (21075621055361).

66066066000055 is a wasteful number, since it uses less digits than its factorization.

66066066000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109200109118 (or 109200109107 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 66066066000055 in words is "sixty-six trillion, sixty-six billion, sixty-six million, fifty-five", and thus it is an aban number and an uban number.