2002666020 has 24 divisors (see below), whose sum is σ = 5607465024. Its totient is φ = 534044256.

The previous prime is 2002665971. The next prime is 2002666027. The reversal of 2002666020 is 206662002.

It is not an unprimeable number, because it can be changed into a prime (2002666027) 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, 16688824 + ... + 16688943.

It is an arithmetic number, because the mean of its divisors is an integer number (233644376).

Almost surely, 2^2002666020 is an apocalyptic number.

2002666020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002666020 is an abundant number, since it is smaller than the sum of its proper divisors (3604799004).

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

2002666020 is a wasteful number, since it uses less digits than its factorization.

2002666020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33377779 (or 33377777 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2002666020 is about 44751.1566330972. The cubic root of 2002666020 is about 1260.4806304459.

The spelling of 2002666020 in words is "two billion, two million, six hundred sixty-six thousand, twenty".