20688814088008 has 32 divisors (see below), whose sum is σ = 42324477968160. Its totient is φ = 9402573258880.

The previous prime is 20688814087993. The next prime is 20688814088011. The reversal of 20688814088008 is 80088041888602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17333485 + ... + 18488572.

It is an arithmetic number, because the mean of its divisors is an integer number (1322639936505).

Almost surely, 2^{20688814088008} is an apocalyptic number.

It is an amenable number.

20688814088008 is an abundant number, since it is smaller than the sum of its proper divisors (21635663880152).

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

20688814088008 is a wasteful number, since it uses less digits than its factorization.

20688814088008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35828637 (or 35828633 counting only the distinct ones).

The product of its (nonzero) digits is 12582912, while the sum is 61.

The spelling of 20688814088008 in words is "twenty trillion, six hundred eighty-eight billion, eight hundred fourteen million, eighty-eight thousand, eight".