20836385088 has 28 divisors (see below), whose sum is σ = 55129602720. Its totient is φ = 6945461632.

The previous prime is 20836385057. The next prime is 20836385107. The reversal of 20836385088 is 88058363802.

It is a self number, because there is not a number n which added to its sum of digits gives 20836385088.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 54261228 + ... + 54261611.

Almost surely, 2^20836385088 is an apocalyptic number.

It is an amenable number.

20836385088 is an abundant number, since it is smaller than the sum of its proper divisors (34293217632).

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

20836385088 is a wasteful number, since it uses less digits than its factorization.

20836385088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108522854 (or 108522844 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 20836385088 in words is "twenty billion, eight hundred thirty-six million, three hundred eighty-five thousand, eighty-eight".