16028728406 has 16 divisors (see below), whose sum is σ = 24377534064. Its totient is φ = 7902929664.

The previous prime is 16028728403. The next prime is 16028728411. The reversal of 16028728406 is 60482782061.

It is a super-2 number, since 2×16028728406² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16028728403) 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, 989585 + ... + 1005651.

It is an arithmetic number, because the mean of its divisors is an integer number (1523595879).

Almost surely, 2^16028728406 is an apocalyptic number.

16028728406 is a deficient number, since it is larger than the sum of its proper divisors (8348805658).

16028728406 is a wasteful number, since it uses less digits than its factorization.

16028728406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22975.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 16028728406 in words is "sixteen billion, twenty-eight million, seven hundred twenty-eight thousand, four hundred six".