20955236046336 has 800 divisors, whose sum is σ = 64851510005568. Its totient is φ = 6733513359360.

The previous prime is 20955236046247. The next prime is 20955236046337. The reversal of 20955236046336 is 63364063255902.

20955236046336 is a `hidden beast` number, since 2 + 0 + 9 + 5 + 5 + 23 + 604 + 6 + 3 + 3 + 6 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955236046337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 43029231885 + ... + 43029232371.

Almost surely, 2^{20955236046336} 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 20955236046336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32425755002784).

20955236046336 is an abundant number, since it is smaller than the sum of its proper divisors (43896273959232).

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

20955236046336 is an equidigital number, since it uses as much as digits as its factorization.

20955236046336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 54.

The spelling of 20955236046336 in words is "twenty trillion, nine hundred fifty-five billion, two hundred thirty-six million, forty-six thousand, three hundred thirty-six".