6620703965 has 16 divisors (see below), whose sum is σ = 8162687280. Its totient is φ = 5151444480.

The previous prime is 6620703953. The next prime is 6620703997. The reversal of 6620703965 is 5693070266.

It can be written as a sum of positive squares in 8 ways, for example, as 418038916 + 6202665049 = 20446^2 + 78757^2 .

It is not a de Polignac number, because 6620703965 - 2¹⁴ = 6620687581 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647795 + ... + 657935.

It is an arithmetic number, because the mean of its divisors is an integer number (510167955).

Almost surely, 2^6620703965 is an apocalyptic number.

It is an amenable number.

6620703965 is a deficient number, since it is larger than the sum of its proper divisors (1541983315).

6620703965 is a wasteful number, since it uses less digits than its factorization.

6620703965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13712.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 6620703965 is about 81367.7083676319. The cubic root of 6620703965 is about 1877.7368236662.

The spelling of 6620703965 in words is "six billion, six hundred twenty million, seven hundred three thousand, nine hundred sixty-five".