2066068820 has 24 divisors (see below), whose sum is σ = 4593965544. Its totient is φ = 777814016.

The previous prime is 2066068819. The next prime is 2066068861. The reversal of 2066068820 is 288606602.

It can be written as a sum of positive squares in 4 ways, for example, as 746054596 + 1320014224 = 27314^2 + 36332^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3037997 + ... + 3038676.

It is an arithmetic number, because the mean of its divisors is an integer number (191415231).

Almost surely, 2^2066068820 is an apocalyptic number.

2066068820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066068820 is an abundant number, since it is smaller than the sum of its proper divisors (2527896724).

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

2066068820 is a wasteful number, since it uses less digits than its factorization.

2066068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076699 (or 6076697 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 2066068820 is about 45454.0297443472. The cubic root of 2066068820 is about 1273.6446075871.

The spelling of 2066068820 in words is "two billion, sixty-six million, sixty-eight thousand, eight hundred twenty".