20002010010020 has 24 divisors (see below), whose sum is σ = 42031268234424. Its totient is φ = 7995652153856.

The previous prime is 20002010010001. The next prime is 20002010010029. The reversal of 20002010010020 is 2001001020002.

It can be written as a sum of positive squares in 4 ways, for example, as 3547677726784 + 16454332283236 = 1883528^2 + 4056394^2 .

It is not an unprimeable number, because it can be changed into a prime (20002010010029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321958799 + ... + 322020918.

It is an arithmetic number, because the mean of its divisors is an integer number (1751302843101).

Almost surely, 2^{20002010010020} is an apocalyptic number.

20002010010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002010010020 is an abundant number, since it is smaller than the sum of its proper divisors (22029258224404).

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

20002010010020 is a wasteful number, since it uses less digits than its factorization.

20002010010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643981279 (or 643981277 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20002010010020 its reverse (2001001020002), we get a palindrome (22003011030022).

The spelling of 20002010010020 in words is "twenty trillion, two billion, ten million, ten thousand, twenty".