1325443122664 has 16 divisors (see below), whose sum is σ = 2485544134500. Its totient is φ = 662631353472.

The previous prime is 1325443122617. The next prime is 1325443122677. The reversal of 1325443122664 is 4662213445231.

It can be written as a sum of positive squares in 2 ways, for example, as 1107019622500 + 218423500164 = 1052150^2 + 467358^2 .

It is a super-3 number, since 3×1325443122664³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1325443122664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11213517 + ... + 11331100.

Almost surely, 2^{1325443122664} is an apocalyptic number.

It is an amenable number.

1325443122664 is a deficient number, since it is larger than the sum of its proper divisors (1160101011836).

1325443122664 is a wasteful number, since it uses less digits than its factorization.

1325443122664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22551972 (or 22551968 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

Adding to 1325443122664 its reverse (4662213445231), we get a palindrome (5987656567895).

The spelling of 1325443122664 in words is "one trillion, three hundred twenty-five billion, four hundred forty-three million, one hundred twenty-two thousand, six hundred sixty-four".