165230305604406 has 72 divisors (see below), whose sum is σ = 419364167584752. Its totient is φ = 46057227984000.

The previous prime is 165230305604389. The next prime is 165230305604411. The reversal of 165230305604406 is 604406503032561.

165230305604406 is a `hidden beast` number, since 1 + 6 + 5 + 2 + 3 + 0 + 30 + 5 + 604 + 4 + 0 + 6 = 666.

It is a super-3 number, since 3×165230305604406³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 389839245 + ... + 390262856.

It is an arithmetic number, because the mean of its divisors is an integer number (5824502327566).

Almost surely, 2^{165230305604406} is an apocalyptic number.

165230305604406 is an abundant number, since it is smaller than the sum of its proper divisors (254133861980346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165230305604406 is a wasteful number, since it uses less digits than its factorization.

165230305604406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780102198 (or 780102154 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

Adding to 165230305604406 its reverse (604406503032561), we get a palindrome (769636808636967).

The spelling of 165230305604406 in words is "one hundred sixty-five trillion, two hundred thirty billion, three hundred five million, six hundred four thousand, four hundred six".