6999697065 has 16 divisors (see below), whose sum is σ = 11686451328. Its totient is φ = 3570859776.

The previous prime is 6999697063. The next prime is 6999697073. The reversal of 6999697065 is 5607969996.

It is not a de Polignac number, because 6999697065 - 2¹ = 6999697063 is a prime.

It is a super-2 number, since 2×6999697065² = 97991518003539228450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6999696987 and 6999697005.

It is not an unprimeable number, because it can be changed into a prime (6999697063) by changing a digit.

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, 10144144 + ... + 10144833.

It is an arithmetic number, because the mean of its divisors is an integer number (730403208).

Almost surely, 2^6999697065 is an apocalyptic number.

It is an amenable number.

6999697065 is a deficient number, since it is larger than the sum of its proper divisors (4686754263).

6999697065 is a wasteful number, since it uses less digits than its factorization.

6999697065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289008.

The product of its (nonzero) digits is 49601160, while the sum is 66.

The square root of 6999697065 is about 83664.1922509266. The cubic root of 6999697065 is about 1912.9035874311.

The spelling of 6999697065 in words is "six billion, nine hundred ninety-nine million, six hundred ninety-seven thousand, sixty-five".