7065606665 has 16 divisors (see below), whose sum is σ = 9611515200. Its totient is φ = 4943063232.

The previous prime is 7065606659. The next prime is 7065606721. The reversal of 7065606665 is 5666065607.

It is a cyclic number.

It is not a de Polignac number, because 7065606665 - 2¹⁶ = 7065541129 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2859335 + ... + 2861804.

It is an arithmetic number, because the mean of its divisors is an integer number (600719700).

Almost surely, 2^7065606665 is an apocalyptic number.

It is an amenable number.

7065606665 is a deficient number, since it is larger than the sum of its proper divisors (2545908535).

7065606665 is a wasteful number, since it uses less digits than its factorization.

7065606665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721176.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The square root of 7065606665 is about 84057.1630796567. The cubic root of 7065606665 is about 1918.8888486279. Note that the first 4 decimals are identical.

The spelling of 7065606665 in words is "seven billion, sixty-five million, six hundred six thousand, six hundred sixty-five".