20255922645504 has 640 divisors, whose sum is σ = 67621086973440. Its totient is φ = 5245599744000.

The previous prime is 20255922645481. The next prime is 20255922645509. The reversal of 20255922645504 is 40554622955202.

It is not an unprimeable number, because it can be changed into a prime (20255922645509) 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 63 ways as a sum of consecutive naturals, for example, 5976959842 + ... + 5976963230.

It is an arithmetic number, because the mean of its divisors is an integer number (105657948396).

Almost surely, 2^{20255922645504} is an apocalyptic number.

20255922645504 is a gapful number since it is divisible by the number (24) 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 20255922645504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33810543486720).

20255922645504 is an abundant number, since it is smaller than the sum of its proper divisors (47365164327936).

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

20255922645504 is a wasteful number, since it uses less digits than its factorization.

20255922645504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 51.

It can be divided in two parts, 2025592 and 2645504, that added together give a triangular number (4671096 = T₃₀₅₆).

The spelling of 20255922645504 in words is "twenty trillion, two hundred fifty-five billion, nine hundred twenty-two million, six hundred forty-five thousand, five hundred four".