20984583266 has 8 divisors (see below), whose sum is σ = 31479674304. Its totient is φ = 10491358500.

The previous prime is 20984583259. The next prime is 20984583287. The reversal of 20984583266 is 66238548902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438110 + ... + 483641.

It is an arithmetic number, because the mean of its divisors is an integer number (3934959288).

Almost surely, 2^20984583266 is an apocalyptic number.

20984583266 is a deficient number, since it is larger than the sum of its proper divisors (10495091038).

20984583266 is a wasteful number, since it uses less digits than its factorization.

20984583266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933136.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 20984583266 in words is "twenty billion, nine hundred eighty-four million, five hundred eighty-three thousand, two hundred sixty-six".