65657313024643 has 16 divisors (see below), whose sum is σ = 68589527535360. Its totient is φ = 62786496443616.

The previous prime is 65657313024637. The next prime is 65657313024647. The reversal of 65657313024643 is 34642031375656.

It is a de Polignac number, because none of the positive numbers 2^k-65657313024643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65657313024647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6896746 + ... + 13374592.

It is an arithmetic number, because the mean of its divisors is an integer number (4286845470960).

Almost surely, 2^{65657313024643} is an apocalyptic number.

65657313024643 is a deficient number, since it is larger than the sum of its proper divisors (2932214510717).

65657313024643 is a wasteful number, since it uses less digits than its factorization.

65657313024643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482586.

The product of its (nonzero) digits is 32659200, while the sum is 55.

The spelling of 65657313024643 in words is "sixty-five trillion, six hundred fifty-seven billion, three hundred thirteen million, twenty-four thousand, six hundred forty-three".