10645463221073 has 2 divisors, whose sum is σ = 10645463221074. Its totient is φ = 10645463221072.

The previous prime is 10645463221033. The next prime is 10645463221109. The reversal of 10645463221073 is 37012236454601.

10645463221073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10392261032209 + 253202188864 = 3223703^2 + 503192^2 .

It is a cyclic number.

It is not a de Polignac number, because 10645463221073 - 2⁶ = 10645463221009 is a prime.

It is a super-2 number, since 2×10645463221073² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10645463221033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322731610536 + 5322731610537.

It is an arithmetic number, because the mean of its divisors is an integer number (5322731610537).

Almost surely, 2^{10645463221073} is an apocalyptic number.

It is an amenable number.

10645463221073 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645463221073 is an equidigital number, since it uses as much as digits as its factorization.

10645463221073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 44.

Adding to 10645463221073 its reverse (37012236454601), we get a palindrome (47657699675674).

The spelling of 10645463221073 in words is "ten trillion, six hundred forty-five billion, four hundred sixty-three million, two hundred twenty-one thousand, seventy-three".