6985164965 has 4 divisors (see below), whose sum is σ = 8382197964. Its totient is φ = 5588131968.

The previous prime is 6985164941. The next prime is 6985165009. The reversal of 6985164965 is 5694615896.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1049695201 + 5935469764 = 32399^2 + 77042^2 .

It is a cyclic number.

It is not a de Polignac number, because 6985164965 - 2⁸ = 6985164709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 698516492 + ... + 698516501.

It is an arithmetic number, because the mean of its divisors is an integer number (2095549491).

Almost surely, 2^6985164965 is an apocalyptic number.

It is an amenable number.

6985164965 is a deficient number, since it is larger than the sum of its proper divisors (1397032999).

6985164965 is a wasteful number, since it uses less digits than its factorization.

6985164965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397032998.

The product of its digits is 13996800, while the sum is 59.

The square root of 6985164965 is about 83577.2993401917. The cubic root of 6985164965 is about 1911.5788745797.

The spelling of 6985164965 in words is "six billion, nine hundred eighty-five million, one hundred sixty-four thousand, nine hundred sixty-five".