20662108852896 has 960 divisors, whose sum is σ = 73243559854080. Its totient is φ = 5589665003520.

The previous prime is 20662108852873. The next prime is 20662108852921. The reversal of 20662108852896 is 69825880126602.

20662108852896 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 2 + 10 + 8 + 8 + 528 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 14279272845 + ... + 14279274291.

It is an arithmetic number, because the mean of its divisors is an integer number (76295374848).

Almost surely, 2^{20662108852896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20662108852896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36621779927040).

20662108852896 is an abundant number, since it is smaller than the sum of its proper divisors (52581451001184).

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

20662108852896 is a wasteful number, since it uses less digits than its factorization.

20662108852896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 20662108852896 in words is "twenty trillion, six hundred sixty-two billion, one hundred eight million, eight hundred fifty-two thousand, eight hundred ninety-six".