20682728176 has 40 divisors (see below), whose sum is σ = 43882084224. Its totient is φ = 9365472960.

The previous prime is 20682728153. The next prime is 20682728177. The reversal of 20682728176 is 67182728602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20682728177) 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, 177126 + ... + 269701.

Almost surely, 2^20682728176 is an apocalyptic number.

It is an amenable number.

20682728176 is an abundant number, since it is smaller than the sum of its proper divisors (23199356048).

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

20682728176 is a wasteful number, since it uses less digits than its factorization.

20682728176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447109 (or 447103 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 20682728176 in words is "twenty billion, six hundred eighty-two million, seven hundred twenty-eight thousand, one hundred seventy-six".