65243115366653 has 4 divisors (see below), whose sum is σ = 74563560419040. Its totient is φ = 55922670314268.

The previous prime is 65243115366589. The next prime is 65243115366719. The reversal of 65243115366653 is 35666351134256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65243115366653 - 2⁶ = 65243115366589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65243115366353) 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, 4660222526183 + ... + 4660222526196.

It is an arithmetic number, because the mean of its divisors is an integer number (18640890104760).

Almost surely, 2^{65243115366653} is an apocalyptic number.

It is an amenable number.

65243115366653 is a deficient number, since it is larger than the sum of its proper divisors (9320445052387).

65243115366653 is an equidigital number, since it uses as much as digits as its factorization.

65243115366653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320445052386.

The product of its digits is 34992000, while the sum is 56.

The spelling of 65243115366653 in words is "sixty-five trillion, two hundred forty-three billion, one hundred fifteen million, three hundred sixty-six thousand, six hundred fifty-three".