65441525042449 has 2 divisors, whose sum is σ = 65441525042450. Its totient is φ = 65441525042448.

The previous prime is 65441525042359. The next prime is 65441525042473. The reversal of 65441525042449 is 94424052514456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57405473689600 + 8036051352849 = 7576640^2 + 2834793^2 .

It is a cyclic number.

It is not a de Polignac number, because 65441525042449 - 2⁷ = 65441525042321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65441525042449.

It is not a weakly prime, because it can be changed into another prime (65441525042249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32720762521224 + 32720762521225.

It is an arithmetic number, because the mean of its divisors is an integer number (32720762521225).

Almost surely, 2^{65441525042449} is an apocalyptic number.

It is an amenable number.

65441525042449 is a deficient number, since it is larger than the sum of its proper divisors (1).

65441525042449 is an equidigital number, since it uses as much as digits as its factorization.

65441525042449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648000, while the sum is 55.

The spelling of 65441525042449 in words is "sixty-five trillion, four hundred forty-one billion, five hundred twenty-five million, forty-two thousand, four hundred forty-nine".