63645651224145 has 20 divisors (see below), whose sum is σ = 114090722935860. Its totient is φ = 33944347319328.

The previous prime is 63645651224107. The next prime is 63645651224153. The reversal of 63645651224145 is 54142215654636.

63645651224145 is a `hidden beast` number, since 6 + 3 + 6 + 4 + 565 + 12 + 24 + 1 + 45 = 666.

63645651224145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18239630140944 + 45406021083201 = 4270788^2 + 6738399^2 .

It is not a de Polignac number, because 63645651224145 - 2¹⁸ = 63645650962001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63645651224091 and 63645651224100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78574877650 + ... + 78574878459.

It is an arithmetic number, because the mean of its divisors is an integer number (5704536146793).

Almost surely, 2^{63645651224145} is an apocalyptic number.

It is an amenable number.

63645651224145 is a deficient number, since it is larger than the sum of its proper divisors (50445071711715).

63645651224145 is a wasteful number, since it uses less digits than its factorization.

63645651224145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157149756126 (or 157149756117 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 54.

The spelling of 63645651224145 in words is "sixty-three trillion, six hundred forty-five billion, six hundred fifty-one million, two hundred twenty-four thousand, one hundred forty-five".