65533553641 has 2 divisors, whose sum is σ = 65533553642. Its totient is φ = 65533553640.

The previous prime is 65533553627. The next prime is 65533553651. The reversal of 65533553641 is 14635533556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44227772416 + 21305781225 = 210304^2 + 145965^2 .

It is a cyclic number.

It is not a de Polignac number, because 65533553641 - 2²¹ = 65531456489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65533553591 and 65533553600.

It is not a weakly prime, because it can be changed into another prime (65533553651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32766776820 + 32766776821.

It is an arithmetic number, because the mean of its divisors is an integer number (32766776821).

Almost surely, 2^65533553641 is an apocalyptic number.

It is an amenable number.

65533553641 is a deficient number, since it is larger than the sum of its proper divisors (1).

65533553641 is an equidigital number, since it uses as much as digits as its factorization.

65533553641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430000, while the sum is 46.

The spelling of 65533553641 in words is "sixty-five billion, five hundred thirty-three million, five hundred fifty-three thousand, six hundred forty-one".