20963969336 has 16 divisors (see below), whose sum is σ = 39506975640. Its totient is φ = 10428775840.

The previous prime is 20963969317. The next prime is 20963969357. The reversal of 20963969336 is 63396936902.

It is a congruent number.

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, 6649430 + ... + 6652581.

Almost surely, 2^20963969336 is an apocalyptic number.

It is an amenable number.

20963969336 is a deficient number, since it is larger than the sum of its proper divisors (18543006304).

20963969336 is a wasteful number, since it uses less digits than its factorization.

20963969336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302214 (or 13302210 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 56.

The spelling of 20963969336 in words is "twenty billion, nine hundred sixty-three million, nine hundred sixty-nine thousand, three hundred thirty-six".