16500745239 has 8 divisors (see below), whose sum is σ = 24001084032. Its totient is φ = 10000451640.

The previous prime is 16500745229. The next prime is 16500745243. The reversal of 16500745239 is 93254700561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16500745239 - 2¹⁶ = 16500679703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16500745239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16500745229) 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, 250011259 + ... + 250011324.

It is an arithmetic number, because the mean of its divisors is an integer number (3000135504).

Almost surely, 2^16500745239 is an apocalyptic number.

16500745239 is a deficient number, since it is larger than the sum of its proper divisors (7500338793).

16500745239 is a wasteful number, since it uses less digits than its factorization.

16500745239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500022597.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 16500745239 in words is "sixteen billion, five hundred million, seven hundred forty-five thousand, two hundred thirty-nine".