16439556359 has 8 divisors (see below), whose sum is σ = 17433504288. Its totient is φ = 15448599040.

The previous prime is 16439556317. The next prime is 16439556361. The reversal of 16439556359 is 95365593461.

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

It is not a de Polignac number, because 16439556359 - 2¹² = 16439552263 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 (16439556389) 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, 736322 + ... + 758319.

It is an arithmetic number, because the mean of its divisors is an integer number (2179188036).

Almost surely, 2^16439556359 is an apocalyptic number.

16439556359 is a deficient number, since it is larger than the sum of its proper divisors (993947929).

16439556359 is a wasteful number, since it uses less digits than its factorization.

16439556359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495305.

The product of its digits is 13122000, while the sum is 56.

The spelling of 16439556359 in words is "sixteen billion, four hundred thirty-nine million, five hundred fifty-six thousand, three hundred fifty-nine".