6340065653 has 4 divisors (see below), whose sum is σ = 6353939340. Its totient is φ = 6326191968.

The previous prime is 6340065649. The next prime is 6340065689. The reversal of 6340065653 is 3565600436.

It is a happy number.

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 5757470884 + 582594769 = 75878^2 + 24137^2 .

It is a cyclic number.

It is not a de Polignac number, because 6340065653 - 2² = 6340065649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6340065553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6936158 + ... + 6937071.

It is an arithmetic number, because the mean of its divisors is an integer number (1588484835).

Almost surely, 2^6340065653 is an apocalyptic number.

It is an amenable number.

6340065653 is a deficient number, since it is larger than the sum of its proper divisors (13873687).

6340065653 is a wasteful number, since it uses less digits than its factorization.

6340065653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13873686.

The product of its (nonzero) digits is 194400, while the sum is 38.

The square root of 6340065653 is about 79624.5292168186. The cubic root of 6340065653 is about 1850.8217097684.

The spelling of 6340065653 in words is "six billion, three hundred forty million, sixty-five thousand, six hundred fifty-three".