64330600562561 has 2 divisors, whose sum is σ = 64330600562562. Its totient is φ = 64330600562560.

The previous prime is 64330600562513. The next prime is 64330600562593. The reversal of 64330600562561 is 16526500603346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61749437002561 + 2581163560000 = 7858081^2 + 1606600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64330600562561 is a prime.

It is not a weakly prime, because it can be changed into another prime (64330600562461) 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, 32165300281280 + 32165300281281.

It is an arithmetic number, because the mean of its divisors is an integer number (32165300281281).

Almost surely, 2^{64330600562561} is an apocalyptic number.

It is an amenable number.

64330600562561 is a deficient number, since it is larger than the sum of its proper divisors (1).

64330600562561 is an equidigital number, since it uses as much as digits as its factorization.

64330600562561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 64330600562561 in words is "sixty-four trillion, three hundred thirty billion, six hundred million, five hundred sixty-two thousand, five hundred sixty-one".