16628286528 has 280 divisors, whose sum is σ = 56583998592. Its totient is φ = 4729798656.

The previous prime is 16628286523. The next prime is 16628286541. The reversal of 16628286528 is 82568282661.

It is a happy number.

16628286528 is a `hidden beast` number, since 1 + 6 + 628 + 2 + 8 + 6 + 5 + 2 + 8 = 666.

16628286528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16628286523) 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 39 ways as a sum of consecutive naturals, for example, 9325125 + ... + 9326907.

Almost surely, 2^16628286528 is an apocalyptic number.

16628286528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16628286528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28291999296).

16628286528 is an abundant number, since it is smaller than the sum of its proper divisors (39955712064).

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

16628286528 is a wasteful number, since it uses less digits than its factorization.

16628286528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2052 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 16628286528 in words is "sixteen billion, six hundred twenty-eight million, two hundred eighty-six thousand, five hundred twenty-eight".