6495697669 has 2 divisors, whose sum is σ = 6495697670. Its totient is φ = 6495697668.

The previous prime is 6495697661. The next prime is 6495697673. The reversal of 6495697669 is 9667965946.

6495697669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5116540900 + 1379156769 = 71530^2 + 37137^2 .

It is a cyclic number.

It is not a de Polignac number, because 6495697669 - 2³ = 6495697661 is a prime.

It is a super-2 number, since 2×6495697669² = 84388176414104067122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6495697661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247848834 + 3247848835.

It is an arithmetic number, because the mean of its divisors is an integer number (3247848835).

Almost surely, 2^6495697669 is an apocalyptic number.

It is an amenable number.

6495697669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6495697669 is an equidigital number, since it uses as much as digits as its factorization.

6495697669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132269760, while the sum is 67.

The square root of 6495697669 is about 80595.8911421668. The cubic root of 6495697669 is about 1865.8437311577.

The spelling of 6495697669 in words is "six billion, four hundred ninety-five million, six hundred ninety-seven thousand, six hundred sixty-nine".