2065208080 has 80 divisors (see below), whose sum is σ = 5198261040. Its totient is φ = 758513664.

The previous prime is 2065208071. The next prime is 2065208081. The reversal of 2065208080 is 808025602.

It can be written as a sum of positive squares in 8 ways, for example, as 64256256 + 2000951824 = 8016^2 + 44732^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2065208081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195576 + ... + 205864.

It is an arithmetic number, because the mean of its divisors is an integer number (64978263).

Almost surely, 2^2065208080 is an apocalyptic number.

2065208080 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 2065208080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2599130520).

2065208080 is an abundant number, since it is smaller than the sum of its proper divisors (3133052960).

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

2065208080 is a wasteful number, since it uses less digits than its factorization.

2065208080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508 (or 10502 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2065208080 is about 45444.5605105826. The cubic root of 2065208080 is about 1273.4677130062.

The spelling of 2065208080 in words is "two billion, sixty-five million, two hundred eight thousand, eighty".