6996701665 has 16 divisors (see below), whose sum is σ = 8711880912. Its totient is φ = 5389922304.

The previous prime is 6996701633. The next prime is 6996701681. The reversal of 6996701665 is 5661076996.

6996701665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 182034064 + 6814667601 = 13492^2 + 82551^2 .

It is a cyclic number.

It is not a de Polignac number, because 6996701665 - 2⁵ = 6996701633 is a prime.

It is a Duffinian 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, 177004 + ... + 212893.

It is an arithmetic number, because the mean of its divisors is an integer number (544492557).

Almost surely, 2^6996701665 is an apocalyptic number.

It is an amenable number.

6996701665 is a deficient number, since it is larger than the sum of its proper divisors (1715179247).

6996701665 is a wasteful number, since it uses less digits than its factorization.

6996701665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390036.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 6996701665 is about 83646.2890091366. The cubic root of 6996701665 is about 1912.6306837665.

The spelling of 6996701665 in words is "six billion, nine hundred ninety-six million, seven hundred one thousand, six hundred sixty-five".