165252006041321 has 8 divisors (see below), whose sum is σ = 167720110264224. Its totient is φ = 162783950535360.

The previous prime is 165252006041281. The next prime is 165252006041327. The reversal of 165252006041321 is 123140600252561.

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 165252006041321 - 2⁴² = 160853959530217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165252006041327) 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, 5315735 + ... + 18940988.

It is an arithmetic number, because the mean of its divisors is an integer number (20965013783028).

Almost surely, 2^{165252006041321} is an apocalyptic number.

It is an amenable number.

165252006041321 is a deficient number, since it is larger than the sum of its proper divisors (2468104222903).

165252006041321 is a wasteful number, since it uses less digits than its factorization.

165252006041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24358471.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 165252006041321 its reverse (123140600252561), we get a palindrome (288392606293882).

The spelling of 165252006041321 in words is "one hundred sixty-five trillion, two hundred fifty-two billion, six million, forty-one thousand, three hundred twenty-one".