16653754728 has 96 divisors (see below), whose sum is σ = 48704696040. Its totient is φ = 5110387200.

The previous prime is 16653754603. The next prime is 16653754759. The reversal of 16653754728 is 82745735661.

16653754728 is a `hidden beast` number, since 1 + 6 + 65 + 37 + 547 + 2 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11371663044 + 5282091684 = 106638^2 + 72678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325278 + ... + 372978.

Almost surely, 2^16653754728 is an apocalyptic number.

16653754728 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 16653754728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24352348020).

16653754728 is an abundant number, since it is smaller than the sum of its proper divisors (32050941312).

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

16653754728 is a wasteful number, since it uses less digits than its factorization.

16653754728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48099 (or 48092 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 16653754728 in words is "sixteen billion, six hundred fifty-three million, seven hundred fifty-four thousand, seven hundred twenty-eight".