16826720576 has 42 divisors (see below), whose sum is σ = 34553396730. Its totient is φ = 8120546560.

The previous prime is 16826720543. The next prime is 16826720623. The reversal of 16826720576 is 67502762861.

16826720576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 14505793600 + 2320926976 = 120440^2 + 48176^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5586911 + ... + 5589921.

Almost surely, 2^16826720576 is an apocalyptic number.

16826720576 is a gapful number since it is divisible by the number (16) 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 16826720576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17276698365).

16826720576 is an abundant number, since it is smaller than the sum of its proper divisors (17726676154).

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

16826720576 is an frugal number, since it uses more digits than its factorization.

16826720576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063 (or 3042 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 16826720576 in words is "sixteen billion, eight hundred twenty-six million, seven hundred twenty thousand, five hundred seventy-six".