164508240329 has 4 divisors (see below), whose sum is σ = 164522045184. Its totient is φ = 164494435476.

The previous prime is 164508240319. The next prime is 164508240343. The reversal of 164508240329 is 923042805461.

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 164508240329 - 2²⁰ = 164507191753 is a prime.

It is a super-2 number, since 2×164508240329² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164508240329.

It is not an unprimeable number, because it can be changed into a prime (164508240319) 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, 6884537 + ... + 6908390.

It is an arithmetic number, because the mean of its divisors is an integer number (41130511296).

Almost surely, 2^164508240329 is an apocalyptic number.

It is an amenable number.

164508240329 is a deficient number, since it is larger than the sum of its proper divisors (13804855).

164508240329 is a wasteful number, since it uses less digits than its factorization.

164508240329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13804854.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 164508240329 in words is "one hundred sixty-four billion, five hundred eight million, two hundred forty thousand, three hundred twenty-nine".