2002666066020 has 84 divisors (see below), whose sum is σ = 6305513655420. Its totient is φ = 534044280384.

The previous prime is 2002666065947. The next prime is 2002666066043. The reversal of 2002666066020 is 206606662002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 482021941284 + 1520644124736 = 694278^2 + 1233144^2 .

It is a super-3 number, since 3×2002666066020³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68663955 + ... + 68693114.

It is an arithmetic number, because the mean of its divisors is an integer number (75065638755).

Almost surely, 2^{2002666066020} is an apocalyptic number.

2002666066020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002666066020 is an abundant number, since it is smaller than the sum of its proper divisors (4302847589400).

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

2002666066020 is a wasteful number, since it uses less digits than its factorization.

2002666066020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137357096 (or 137357079 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 2002666066020 in words is "two trillion, two billion, six hundred sixty-six million, sixty-six thousand, twenty".