20888508588 has 24 divisors (see below), whose sum is σ = 48755094192. Its totient is φ = 6960658944.

The previous prime is 20888508541. The next prime is 20888508607. The reversal of 20888508588 is 88580588802.

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 7 ways as a sum of consecutive naturals, for example, 231945 + ... + 309152.

It is an arithmetic number, because the mean of its divisors is an integer number (2031462258).

Almost surely, 2^20888508588 is an apocalyptic number.

It is an amenable number.

20888508588 is an abundant number, since it is smaller than the sum of its proper divisors (27866585604).

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

20888508588 is a wasteful number, since it uses less digits than its factorization.

20888508588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544321 (or 544319 counting only the distinct ones).

The product of its (nonzero) digits is 13107200, while the sum is 60.

The spelling of 20888508588 in words is "twenty billion, eight hundred eighty-eight million, five hundred eight thousand, five hundred eighty-eight".