16650840028032 has 576 divisors, whose sum is σ = 58679274326400. Its totient is φ = 4603861048320.

The previous prime is 16650840028019. The next prime is 16650840028037. The reversal of 16650840028032 is 23082004805661.

16650840028032 is a `hidden beast` number, since 1 + 66 + 508 + 4 + 0 + 0 + 2 + 80 + 3 + 2 = 666.

16650840028032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×16650840028032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650840028037) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 209196819 + ... + 209276397.

It is an arithmetic number, because the mean of its divisors is an integer number (101873740150).

Almost surely, 2^{16650840028032} is an apocalyptic number.

16650840028032 is a gapful number since it is divisible by the number (12) 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 16650840028032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29339637163200).

16650840028032 is an abundant number, since it is smaller than the sum of its proper divisors (42028434298368).

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

16650840028032 is an frugal number, since it uses more digits than its factorization.

16650840028032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79677 (or 79622 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 16650840028032 in words is "sixteen trillion, six hundred fifty billion, eight hundred forty million, twenty-eight thousand, thirty-two".