16068163728 has 40 divisors (see below), whose sum is σ = 42392608128. Its totient is φ = 5242095232.

The previous prime is 16068163723. The next prime is 16068163729. The reversal of 16068163728 is 82736186061.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16068163723) 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 7 ways as a sum of consecutive naturals, for example, 3558951 + ... + 3563462.

Almost surely, 2^16068163728 is an apocalyptic number.

It is an amenable number.

16068163728 is an abundant number, since it is smaller than the sum of its proper divisors (26324444400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16068163728 is a wasteful number, since it uses less digits than its factorization.

16068163728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122471 (or 7122465 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 16068163728 in words is "sixteen billion, sixty-eight million, one hundred sixty-three thousand, seven hundred twenty-eight".