16019728318 has 16 divisors (see below), whose sum is σ = 26232269184. Its totient is φ = 7276647960.

The previous prime is 16019728289. The next prime is 16019728327. The reversal of 16019728318 is 81382791061.

It is a happy number.

It is a super-3 number, since 3×16019728318³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219780 + ... + 283447.

It is an arithmetic number, because the mean of its divisors is an integer number (1639516824).

Almost surely, 2^16019728318 is an apocalyptic number.

16019728318 is a deficient number, since it is larger than the sum of its proper divisors (10212540866).

16019728318 is a wasteful number, since it uses less digits than its factorization.

16019728318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504687.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 16019728318 in words is "sixteen billion, nineteen million, seven hundred twenty-eight thousand, three hundred eighteen".