20082806066660 has 48 divisors (see below), whose sum is σ = 42752357247600. Its totient is φ = 7922942521344.

The previous prime is 20082806066579. The next prime is 20082806066723. The reversal of 20082806066660 is 6666060828002.

It can be written as a sum of positive squares in 8 ways, for example, as 8049011578084 + 12033794488576 = 2837078^2 + 3468976^2 .

It is a super-2 number, since 2×20082806066660² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20082806066599 and 20082806066608.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143987036 + ... + 144126444.

It is an arithmetic number, because the mean of its divisors is an integer number (890674109325).

Almost surely, 2^{20082806066660} is an apocalyptic number.

20082806066660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20082806066660 is an abundant number, since it is smaller than the sum of its proper divisors (22669551180940).

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

20082806066660 is a wasteful number, since it uses less digits than its factorization.

20082806066660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238160 (or 238158 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 20082806066660 in words is "twenty trillion, eighty-two billion, eight hundred six million, sixty-six thousand, six hundred sixty".