20550060453888 has 2496 divisors, whose sum is σ = 78826724121600. Its totient is φ = 5217111244800.

The previous prime is 20550060453817. The next prime is 20550060453913. The reversal of 20550060453888 is 88835406005502.

20550060453888 is a `hidden beast` number, since 2 + 0 + 5 + 50 + 0 + 60 + 453 + 8 + 88 = 666.

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

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 203465945038 + ... + 203465945138.

It is an arithmetic number, because the mean of its divisors is an integer number (31581219600).

Almost surely, 2^{20550060453888} is an apocalyptic number.

20550060453888 is a gapful number since it is divisible by the number (28) 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 20550060453888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39413362060800).

20550060453888 is an abundant number, since it is smaller than the sum of its proper divisors (58276663667712).

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

20550060453888 is a wasteful number, since it uses less digits than its factorization.

20550060453888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 54.

The spelling of 20550060453888 in words is "twenty trillion, five hundred fifty billion, sixty million, four hundred fifty-three thousand, eight hundred eighty-eight".