65454662312321 has 4 divisors (see below), whose sum is σ = 66066388128432. Its totient is φ = 64842936496212.

The previous prime is 65454662312293. The next prime is 65454662312329. The reversal of 65454662312321 is 12321326645456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65454662312321 - 2⁴² = 61056615801217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65454662312321.

It is not an unprimeable number, because it can be changed into a prime (65454662312329) 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, 305862907895 + ... + 305862908108.

It is an arithmetic number, because the mean of its divisors is an integer number (16516597032108).

Almost surely, 2^{65454662312321} is an apocalyptic number.

It is an amenable number.

65454662312321 is a deficient number, since it is larger than the sum of its proper divisors (611725816111).

65454662312321 is a wasteful number, since it uses less digits than its factorization.

65454662312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611725816110.

The product of its digits is 6220800, while the sum is 50.

Adding to 65454662312321 its reverse (12321326645456), we get a palindrome (77775988957777).

The spelling of 65454662312321 in words is "sixty-five trillion, four hundred fifty-four billion, six hundred sixty-two million, three hundred twelve thousand, three hundred twenty-one".