65461666616453 has 2 divisors, whose sum is σ = 65461666616454. Its totient is φ = 65461666616452.

The previous prime is 65461666616429. The next prime is 65461666616459. The reversal of 65461666616453 is 35461666616456.

65461666616453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65125658582209 + 336008034244 = 8070047^2 + 579662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65461666616453 is a prime.

It is a super-2 number, since 2×65461666616453² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65461666616453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65461666616459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32730833308226 + 32730833308227.

It is an arithmetic number, because the mean of its divisors is an integer number (32730833308227).

Almost surely, 2^{65461666616453} is an apocalyptic number.

It is an amenable number.

65461666616453 is a deficient number, since it is larger than the sum of its proper divisors (1).

65461666616453 is an equidigital number, since it uses as much as digits as its factorization.

65461666616453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 335923200, while the sum is 65.

The spelling of 65461666616453 in words is "sixty-five trillion, four hundred sixty-one billion, six hundred sixty-six million, six hundred sixteen thousand, four hundred fifty-three".