20963688288 has 48 divisors (see below), whose sum is σ = 55157469696. Its totient is φ = 6971669120.

The previous prime is 20963688199. The next prime is 20963688293. The reversal of 20963688288 is 88288636902.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211956 + ... + 294707.

It is an arithmetic number, because the mean of its divisors is an integer number (1149113952).

Almost surely, 2^20963688288 is an apocalyptic number.

It is an amenable number.

20963688288 is an abundant number, since it is smaller than the sum of its proper divisors (34193781408).

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

20963688288 is a wasteful number, since it uses less digits than its factorization.

20963688288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507107 (or 507099 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 20963688288 in words is "twenty billion, nine hundred sixty-three million, six hundred eighty-eight thousand, two hundred eighty-eight".