16239805345 has 8 divisors (see below), whose sum is σ = 19488531240. Its totient is φ = 12991334400.

The previous prime is 16239805301. The next prime is 16239805357. The reversal of 16239805345 is 54350893261.

It can be written as a sum of positive squares in 4 ways, for example, as 97594641 + 16142210704 = 9879^2 + 127052^2 .

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

It is not a de Polignac number, because 16239805345 - 2¹¹ = 16239803297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16239805295 and 16239805304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129871 + ... + 222139.

It is an arithmetic number, because the mean of its divisors is an integer number (2436066405).

Almost surely, 2^16239805345 is an apocalyptic number.

It is an amenable number.

16239805345 is a deficient number, since it is larger than the sum of its proper divisors (3248725895).

16239805345 is an equidigital number, since it uses as much as digits as its factorization.

16239805345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127475.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 16239805345 in words is "sixteen billion, two hundred thirty-nine million, eight hundred five thousand, three hundred forty-five".