164340653506321 has 8 divisors (see below), whose sum is σ = 166507256798784. Its totient is φ = 162185730016560.

The previous prime is 164340653506319. The next prime is 164340653506349. The reversal of 164340653506321 is 123605356043461.

164340653506321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164340653506321 - 2¹ = 164340653506319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164340653507321) 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, 2919922350 + ... + 2919978631.

It is an arithmetic number, because the mean of its divisors is an integer number (20813407099848).

Almost surely, 2^{164340653506321} is an apocalyptic number.

It is an amenable number.

164340653506321 is a deficient number, since it is larger than the sum of its proper divisors (2166603292463).

164340653506321 is a wasteful number, since it uses less digits than its factorization.

164340653506321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839901351.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 164340653506321 in words is "one hundred sixty-four trillion, three hundred forty billion, six hundred fifty-three million, five hundred six thousand, three hundred twenty-one".