20688592896 has 84 divisors (see below), whose sum is σ = 59763611232. Its totient is φ = 6896173056.

The previous prime is 20688592891. The next prime is 20688592913. The reversal of 20688592896 is 69829588602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20688592891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66576 + ... + 214031.

Almost surely, 2^20688592896 is an apocalyptic number.

It is an amenable number.

20688592896 is an abundant number, since it is smaller than the sum of its proper divisors (39075018336).

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

20688592896 is an equidigital number, since it uses as much as digits as its factorization.

20688592896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280639 (or 280612 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 20688592896 in words is "twenty billion, six hundred eighty-eight million, five hundred ninety-two thousand, eight hundred ninety-six".