65455943647 has 2 divisors, whose sum is σ = 65455943648. Its totient is φ = 65455943646.

The previous prime is 65455943633. The next prime is 65455943669. The reversal of 65455943647 is 74634955456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65455943647 - 2¹¹ = 65455941599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65455943591 and 65455943600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65455943617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32727971823 + 32727971824.

It is an arithmetic number, because the mean of its divisors is an integer number (32727971824).

Almost surely, 2^65455943647 is an apocalyptic number.

65455943647 is a deficient number, since it is larger than the sum of its proper divisors (1).

65455943647 is an equidigital number, since it uses as much as digits as its factorization.

65455943647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 58.

The spelling of 65455943647 in words is "sixty-five billion, four hundred fifty-five million, nine hundred forty-three thousand, six hundred forty-seven".