16423545231305 has 16 divisors (see below), whose sum is σ = 20395248835584. Its totient is φ = 12682974997440.

The previous prime is 16423545231277. The next prime is 16423545231311. The reversal of 16423545231305 is 50313254532461.

It is not a de Polignac number, because 16423545231305 - 2²⁰ = 16423544182729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133387277 + ... + 133510346.

It is an arithmetic number, because the mean of its divisors is an integer number (1274703052224).

Almost surely, 2^{16423545231305} is an apocalyptic number.

It is an amenable number.

16423545231305 is a deficient number, since it is larger than the sum of its proper divisors (3971703604279).

16423545231305 is a wasteful number, since it uses less digits than its factorization.

16423545231305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266898056.

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 16423545231305 its reverse (50313254532461), we get a palindrome (66736799763766).

The spelling of 16423545231305 in words is "sixteen trillion, four hundred twenty-three billion, five hundred forty-five million, two hundred thirty-one thousand, three hundred five".