16459542399 has 16 divisors (see below), whose sum is σ = 22053150720. Its totient is φ = 10919531040.

The previous prime is 16459542391. The next prime is 16459542401. The reversal of 16459542399 is 99324595461.

It is not a de Polignac number, because 16459542399 - 2³ = 16459542391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16459542391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1676194 + ... + 1685984.

It is an arithmetic number, because the mean of its divisors is an integer number (1378321920).

Almost surely, 2^16459542399 is an apocalyptic number.

16459542399 is a deficient number, since it is larger than the sum of its proper divisors (5593608321).

16459542399 is a wasteful number, since it uses less digits than its factorization.

16459542399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12470.

The product of its digits is 10497600, while the sum is 57.

The spelling of 16459542399 in words is "sixteen billion, four hundred fifty-nine million, five hundred forty-two thousand, three hundred ninety-nine".