20590727611128 has 16 divisors (see below), whose sum is σ = 51476819027880. Its totient is φ = 6863575870368.

The previous prime is 20590727611127. The next prime is 20590727611159. The reversal of 20590727611128 is 82111672709502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20590727611127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428973491875 + ... + 428973491922.

Almost surely, 2^{20590727611128} is an apocalyptic number.

It is an amenable number.

20590727611128 is an abundant number, since it is smaller than the sum of its proper divisors (30886091416752).

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

20590727611128 is a wasteful number, since it uses less digits than its factorization.

20590727611128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857946983806 (or 857946983802 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 20590727611128 in words is "twenty trillion, five hundred ninety billion, seven hundred twenty-seven million, six hundred eleven thousand, one hundred twenty-eight".