7066128885 has 16 divisors (see below), whose sum is σ = 11797363584. Its totient is φ = 3604749632.

The previous prime is 7066128877. The next prime is 7066128907. The reversal of 7066128885 is 5888216607.

It is a cyclic number.

It is not a de Polignac number, because 7066128885 - 2³ = 7066128877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10240422 + ... + 10241111.

It is an arithmetic number, because the mean of its divisors is an integer number (737335224).

Almost surely, 2^7066128885 is an apocalyptic number.

It is an amenable number.

7066128885 is a deficient number, since it is larger than the sum of its proper divisors (4731234699).

7066128885 is a wasteful number, since it uses less digits than its factorization.

7066128885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481564.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 7066128885 is about 84060.2693607390. The cubic root of 7066128885 is about 1918.9361225797.

The spelling of 7066128885 in words is "seven billion, sixty-six million, one hundred twenty-eight thousand, eight hundred eighty-five".