16159720287 has 4 divisors (see below), whose sum is σ = 21546293720. Its totient is φ = 10773146856.

The previous prime is 16159720271. The next prime is 16159720333. The reversal of 16159720287 is 78202795161.

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

It is not a de Polignac number, because 16159720287 - 2⁴ = 16159720271 is a prime.

It is a super-2 number, since 2×16159720287² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16159720237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2693286712 + ... + 2693286717.

It is an arithmetic number, because the mean of its divisors is an integer number (5386573430).

Almost surely, 2^16159720287 is an apocalyptic number.

16159720287 is a deficient number, since it is larger than the sum of its proper divisors (5386573433).

16159720287 is an equidigital number, since it uses as much as digits as its factorization.

16159720287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386573432.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 16159720287 in words is "sixteen billion, one hundred fifty-nine million, seven hundred twenty thousand, two hundred eighty-seven".