20567084128 has 24 divisors (see below), whose sum is σ = 42622576920. Its totient is φ = 9742302720.

The previous prime is 20567084107. The next prime is 20567084129. The reversal of 20567084128 is 82148076502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20567084129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16913113 + ... + 16914328.

It is an arithmetic number, because the mean of its divisors is an integer number (1775940705).

Almost surely, 2^20567084128 is an apocalyptic number.

It is an amenable number.

20567084128 is an abundant number, since it is smaller than the sum of its proper divisors (22055492792).

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

20567084128 is a wasteful number, since it uses less digits than its factorization.

20567084128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33827470 (or 33827462 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 20567084128 in words is "twenty billion, five hundred sixty-seven million, eighty-four thousand, one hundred twenty-eight".