1324116664621 has 4 divisors (see below), whose sum is σ = 1324601869500. Its totient is φ = 1323631459744.

The previous prime is 1324116664609. The next prime is 1324116664667. The reversal of 1324116664621 is 1264666114231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1271188600900 + 52928063721 = 1127470^2 + 230061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324116664621 - 2³⁹ = 774360850733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324116664721) by changing a digit.

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, 242598346 + ... + 242603803.

It is an arithmetic number, because the mean of its divisors is an integer number (331150467375).

Almost surely, 2^{1324116664621} is an apocalyptic number.

It is an amenable number.

1324116664621 is a deficient number, since it is larger than the sum of its proper divisors (485204879).

1324116664621 is an equidigital number, since it uses as much as digits as its factorization.

1324116664621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485204878.

The product of its digits is 248832, while the sum is 43.

The spelling of 1324116664621 in words is "one trillion, three hundred twenty-four billion, one hundred sixteen million, six hundred sixty-four thousand, six hundred twenty-one".