16545230239 has 4 divisors (see below), whose sum is σ = 16550746480. Its totient is φ = 16539714000.

The previous prime is 16545230203. The next prime is 16545230257. The reversal of 16545230239 is 93203254561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16545230239 - 2²³ = 16536841631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545230269) 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, 2753619 + ... + 2759620.

It is an arithmetic number, because the mean of its divisors is an integer number (4137686620).

Almost surely, 2^16545230239 is an apocalyptic number.

16545230239 is a deficient number, since it is larger than the sum of its proper divisors (5516241).

16545230239 is an equidigital number, since it uses as much as digits as its factorization.

16545230239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5516240.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 16545230239 in words is "sixteen billion, five hundred forty-five million, two hundred thirty thousand, two hundred thirty-nine".