65663704369 has 2 divisors, whose sum is σ = 65663704370. Its totient is φ = 65663704368.

The previous prime is 65663704367. The next prime is 65663704423. The reversal of 65663704369 is 96340736656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61659345969 + 4004358400 = 248313^2 + 63280^2 .

It is a cyclic number.

It is not a de Polignac number, because 65663704369 - 2¹ = 65663704367 is a prime.

It is a super-2 number, since 2×65663704369² (a number of 22 digits) contains 22 as substring.

Together with 65663704367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65663704361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32831852184 + 32831852185.

It is an arithmetic number, because the mean of its divisors is an integer number (32831852185).

Almost surely, 2^65663704369 is an apocalyptic number.

It is an amenable number.

65663704369 is a deficient number, since it is larger than the sum of its proper divisors (1).

65663704369 is an equidigital number, since it uses as much as digits as its factorization.

65663704369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 55.

The spelling of 65663704369 in words is "sixty-five billion, six hundred sixty-three million, seven hundred four thousand, three hundred sixty-nine".