20635896960000 has 4400 divisors, whose sum is σ = 96195607052160. Its totient is φ = 4299816960000.

The previous prime is 20635896959989. The next prime is 20635896960011. The reversal of 20635896960000 is 6969853602.

20635896960000 is a `hidden beast` number, since 20 + 6 + 3 + 5 + 8 + 9 + 6 + 9 + 600 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20635896959989) and next prime (20635896960011).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 399 ways as a sum of consecutive naturals, for example, 282683519964 + ... + 282683520036.

Almost surely, 2^{20635896960000} is an apocalyptic number.

20635896960000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20635896960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48097803526080).

20635896960000 is an abundant number, since it is smaller than the sum of its proper divisors (75559710092160).

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

20635896960000 is an equidigital number, since it uses as much as digits as its factorization.

20635896960000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 20635896960000 in words is "twenty trillion, six hundred thirty-five billion, eight hundred ninety-six million, nine hundred sixty thousand".