2061000020 has 24 divisors (see below), whose sum is σ = 4329184104. Its totient is φ = 824193536.

The previous prime is 2061000017. The next prime is 2061000023. The reversal of 2061000020 is 200001602.

It is an interprime number because it is at equal distance from previous prime (2061000017) and next prime (2061000023).

It can be written as a sum of positive squares in 4 ways, for example, as 80928016 + 1980072004 = 8996^2 + 44498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2060999965 and 2061000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061000023) 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 7 ways as a sum of consecutive naturals, for example, 88304 + ... + 109176.

It is an arithmetic number, because the mean of its divisors is an integer number (180382671).

Almost surely, 2^2061000020 is an apocalyptic number.

2061000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061000020 is an abundant number, since it is smaller than the sum of its proper divisors (2268184084).

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

2061000020 is a wasteful number, since it uses less digits than its factorization.

2061000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25819 (or 25817 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2061000020 is about 45398.2380715375. The cubic root of 2061000020 is about 1272.6021872461.

Adding to 2061000020 its reverse (200001602), we get a palindrome (2261001622).

The spelling of 2061000020 in words is "two billion, sixty-one million, twenty", and thus it is an aban number and an uban number.