65883594830641 has 27 divisors (see below), whose sum is σ = 81414725556609. Its totient is φ = 53149011568128.

The previous prime is 65883594830623. The next prime is 65883594830681. The reversal of 65883594830641 is 14603849538856.

It is a happy number.

The square root of 65883594830641 is 8116871.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4689022122225 + 61194572708416 = 2165415^2 + 7822696^2 .

It is not a de Polignac number, because 65883594830641 - 2⁵ = 65883594830609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65883594830681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 965873545 + ... + 965941753.

Almost surely, 2^{65883594830641} is an apocalyptic number.

65883594830641 is the 8116871-st square number.

65883594830641 is the 4058436-th centered octagonal number.

It is an amenable number.

65883594830641 is a deficient number, since it is larger than the sum of its proper divisors (15531130725968).

65883594830641 is an frugal number, since it uses more digits than its factorization.

65883594830641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136466 (or 68233 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 70.

The spelling of 65883594830641 in words is "sixty-five trillion, eight hundred eighty-three billion, five hundred ninety-four million, eight hundred thirty thousand, six hundred forty-one".