13205442850064 has 10 divisors (see below), whose sum is σ = 25585545522030. Its totient is φ = 6602721425024.

The previous prime is 13205442850063. The next prime is 13205442850069. The reversal of 13205442850064 is 46005824450231.

It can be written as a sum of positive squares in only one way, i.e., 13031320251664 + 174122598400 = 3609892^2 + 417280^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13205442849997 and 13205442850024.

It is not an unprimeable number, because it can be changed into a prime (13205442850063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412670089049 + ... + 412670089080.

It is an arithmetic number, because the mean of its divisors is an integer number (2558554552203).

Almost surely, 2^{13205442850064} is an apocalyptic number.

It is an amenable number.

13205442850064 is a deficient number, since it is larger than the sum of its proper divisors (12380102671966).

13205442850064 is an equidigital number, since it uses as much as digits as its factorization.

13205442850064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825340178137 (or 825340178131 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 13205442850064 in words is "thirteen trillion, two hundred five billion, four hundred forty-two million, eight hundred fifty thousand, sixty-four".