165230305604401 has 4 divisors (see below), whose sum is σ = 167221032178032. Its totient is φ = 163239579030772.

The previous prime is 165230305604389. The next prime is 165230305604411. The reversal of 165230305604401 is 104406503032561.

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 165230305604401 - 2⁹ = 165230305603889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165230305604411) 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, 995363286691 + ... + 995363286856.

It is an arithmetic number, because the mean of its divisors is an integer number (41805258044508).

Almost surely, 2^{165230305604401} is an apocalyptic number.

It is an amenable number.

165230305604401 is a deficient number, since it is larger than the sum of its proper divisors (1990726573631).

165230305604401 is an equidigital number, since it uses as much as digits as its factorization.

165230305604401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990726573630.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 165230305604401 its reverse (104406503032561), we get a palindrome (269636808636962).

The spelling of 165230305604401 in words is "one hundred sixty-five trillion, two hundred thirty billion, three hundred five million, six hundred four thousand, four hundred one".