2066280080 has 40 divisors (see below), whose sum is σ = 4808918400. Its totient is φ = 825683328.

The previous prime is 2066280071. The next prime is 2066280089. The reversal of 2066280080 is 800826602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2066280071) and next prime (2066280089).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2066280089) 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, 70691 + ... + 95549.

It is an arithmetic number, because the mean of its divisors is an integer number (120222960).

Almost surely, 2^2066280080 is an apocalyptic number.

2066280080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066280080 is an abundant number, since it is smaller than the sum of its proper divisors (2742638320).

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

2066280080 is a wasteful number, since it uses less digits than its factorization.

2066280080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25911 (or 25905 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2066280080 is about 45456.3535713106. The cubic root of 2066280080 is about 1273.6880170783.

The spelling of 2066280080 in words is "two billion, sixty-six million, two hundred eighty thousand, eighty".