264144533323241 has 4 divisors (see below), whose sum is σ = 266759825732484. Its totient is φ = 261529240914000.

The previous prime is 264144533323199. The next prime is 264144533323243. The reversal of 264144533323241 is 142323335441462.

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 198658566647641 + 65485966675600 = 14094629^2 + 8092340^2 .

It is a cyclic number.

It is not a de Polignac number, because 264144533323241 - 2²² = 264144529128937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264144533323243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307646204470 + ... + 1307646204671.

It is an arithmetic number, because the mean of its divisors is an integer number (66689956433121).

Almost surely, 2^{264144533323241} is an apocalyptic number.

It is an amenable number.

264144533323241 is a deficient number, since it is larger than the sum of its proper divisors (2615292409243).

264144533323241 is a wasteful number, since it uses less digits than its factorization.

264144533323241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615292409242.

The product of its digits is 4976640, while the sum is 47.

The spelling of 264144533323241 in words is "two hundred sixty-four trillion, one hundred forty-four billion, five hundred thirty-three million, three hundred twenty-three thousand, two hundred forty-one".