65144354225321 has 8 divisors (see below), whose sum is σ = 74452439825280. Its totient is φ = 55836705945888.

The previous prime is 65144354225299. The next prime is 65144354225339. The reversal of 65144354225321 is 12352245344156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65144354225321 - 2⁶ = 65144354225257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65144354225351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109010861 + ... + 109606826.

It is an arithmetic number, because the mean of its divisors is an integer number (9306554978160).

Almost surely, 2^{65144354225321} is an apocalyptic number.

It is an amenable number.

65144354225321 is a deficient number, since it is larger than the sum of its proper divisors (9308085599959).

65144354225321 is a wasteful number, since it uses less digits than its factorization.

65144354225321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218660263.

The product of its digits is 3456000, while the sum is 47.

Adding to 65144354225321 its reverse (12352245344156), we get a palindrome (77496599569477).

The spelling of 65144354225321 in words is "sixty-five trillion, one hundred forty-four billion, three hundred fifty-four million, two hundred twenty-five thousand, three hundred twenty-one".