2021060005500 has 192 divisors, whose sum is σ = 5996922003072. Its totient is φ = 528806707200.

The previous prime is 2021060005477. The next prime is 2021060005507. The reversal of 2021060005500 is 55000601202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021060005507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21085684 + ... + 21181316.

It is an arithmetic number, because the mean of its divisors is an integer number (31233968766).

Almost surely, 2^{2021060005500} is an apocalyptic number.

2021060005500 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 2021060005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2998461001536).

2021060005500 is an abundant number, since it is smaller than the sum of its proper divisors (3975861997572).

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

2021060005500 is a wasteful number, since it uses less digits than its factorization.

2021060005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95921 (or 95909 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 2021060005500 its reverse (55000601202), we get a palindrome (2076060606702).

The spelling of 2021060005500 in words is "two trillion, twenty-one billion, sixty million, five thousand, five hundred".