20666353282 has 32 divisors (see below), whose sum is σ = 31954881024. Its totient is φ = 10019942400.

The previous prime is 20666353261. The next prime is 20666353283. The reversal of 20666353282 is 28235366602.

It is not an unprimeable number, because it can be changed into a prime (20666353283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565807 + ... + 3571597.

It is an arithmetic number, because the mean of its divisors is an integer number (998590032).

Almost surely, 2^20666353282 is an apocalyptic number.

20666353282 is a deficient number, since it is larger than the sum of its proper divisors (11288527742).

20666353282 is a wasteful number, since it uses less digits than its factorization.

20666353282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 20666353282 in words is "twenty billion, six hundred sixty-six million, three hundred fifty-three thousand, two hundred eighty-two".