65734739360321 has 4 divisors (see below), whose sum is σ = 65734926188544. Its totient is φ = 65734552532100.

The previous prime is 65734739360317. The next prime is 65734739360341. The reversal of 65734739360321 is 12306393743756.

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 65734739360321 - 2² = 65734739360317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65734739360341) 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, 92885345 + ... + 93590366.

It is an arithmetic number, because the mean of its divisors is an integer number (16433731547136).

Almost surely, 2^{65734739360321} is an apocalyptic number.

It is an amenable number.

65734739360321 is a deficient number, since it is larger than the sum of its proper divisors (186828223).

65734739360321 is a wasteful number, since it uses less digits than its factorization.

65734739360321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186828222.

The product of its (nonzero) digits is 51438240, while the sum is 59.

The spelling of 65734739360321 in words is "sixty-five trillion, seven hundred thirty-four billion, seven hundred thirty-nine million, three hundred sixty thousand, three hundred twenty-one".