65532623573 has 2 divisors, whose sum is σ = 65532623574. Its totient is φ = 65532623572.

The previous prime is 65532623551. The next prime is 65532623609. The reversal of 65532623573 is 37532623556.

65532623573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62416527889 + 3116095684 = 249833^2 + 55822^2 .

It is a cyclic number.

It is not a de Polignac number, because 65532623573 - 2⁶ = 65532623509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65532623173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32766311786 + 32766311787.

It is an arithmetic number, because the mean of its divisors is an integer number (32766311787).

Almost surely, 2^65532623573 is an apocalyptic number.

It is an amenable number.

65532623573 is a deficient number, since it is larger than the sum of its proper divisors (1).

65532623573 is an equidigital number, since it uses as much as digits as its factorization.

65532623573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 47.

The spelling of 65532623573 in words is "sixty-five billion, five hundred thirty-two million, six hundred twenty-three thousand, five hundred seventy-three".