66066000055 has 64 divisors (see below), whose sum is σ = 92901344256. Its totient is φ = 44618112000.

The previous prime is 66066000047. The next prime is 66066000079. The reversal of 66066000055 is 55000066066.

It is not a de Polignac number, because 66066000055 - 2³ = 66066000047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10940497 + ... + 10946533.

It is an arithmetic number, because the mean of its divisors is an integer number (1451583504).

Almost surely, 2^66066000055 is an apocalyptic number.

66066000055 is a deficient number, since it is larger than the sum of its proper divisors (26835344201).

66066000055 is a wasteful number, since it uses less digits than its factorization.

66066000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 66066000055 in words is "sixty-six billion, sixty-six million, fifty-five", and thus it is an aban number and an uban number.