65350454621 has 2 divisors, whose sum is σ = 65350454622. Its totient is φ = 65350454620.

The previous prime is 65350454567. The next prime is 65350454623. The reversal of 65350454621 is 12645405356.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34659268900 + 30691185721 = 186170^2 + 175189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65350454621 is a prime.

Together with 65350454623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65350454623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32675227310 + 32675227311.

It is an arithmetic number, because the mean of its divisors is an integer number (32675227311).

Almost surely, 2^65350454621 is an apocalyptic number.

It is an amenable number.

65350454621 is a deficient number, since it is larger than the sum of its proper divisors (1).

65350454621 is an equidigital number, since it uses as much as digits as its factorization.

65350454621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 65350454621 its reverse (12645405356), we get a palindrome (77995859977).

The spelling of 65350454621 in words is "sixty-five billion, three hundred fifty million, four hundred fifty-four thousand, six hundred twenty-one".