16161716019 has 4 divisors (see below), whose sum is σ = 21548954696. Its totient is φ = 10774477344.

The previous prime is 16161716017. The next prime is 16161716029. The reversal of 16161716019 is 91061716161.

16161716019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16161716019 - 2¹ = 16161716017 is a prime.

It is a super-2 number, since 2×16161716019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161716017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2693619334 + ... + 2693619339.

It is an arithmetic number, because the mean of its divisors is an integer number (5387238674).

Almost surely, 2^16161716019 is an apocalyptic number.

16161716019 is a deficient number, since it is larger than the sum of its proper divisors (5387238677).

16161716019 is an equidigital number, since it uses as much as digits as its factorization.

16161716019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387238676.

The product of its (nonzero) digits is 13608, while the sum is 39.

The spelling of 16161716019 in words is "sixteen billion, one hundred sixty-one million, seven hundred sixteen thousand, nineteen".