9656396653 has 4 divisors (see below), whose sum is σ = 9659808028. Its totient is φ = 9652985280.

The previous prime is 9656396647. The next prime is 9656396689. The reversal of 9656396653 is 3566936569.

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 1310295204 + 8346101449 = 36198^2 + 91357^2 .

It is a cyclic number.

It is not a de Polignac number, because 9656396653 - 2²⁵ = 9622842221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9656396693) 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, 1701438 + ... + 1707103.

It is an arithmetic number, because the mean of its divisors is an integer number (2414952007).

Almost surely, 2^9656396653 is an apocalyptic number.

It is an amenable number.

9656396653 is a deficient number, since it is larger than the sum of its proper divisors (3411375).

9656396653 is a wasteful number, since it uses less digits than its factorization.

9656396653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411374.

The product of its digits is 23619600, while the sum is 58.

The square root of 9656396653 is about 98266.9662348441. The cubic root of 9656396653 is about 2129.4708474901.

The spelling of 9656396653 in words is "nine billion, six hundred fifty-six million, three hundred ninety-six thousand, six hundred fifty-three".