20903696368 has 20 divisors (see below), whose sum is σ = 40749388648. Its totient is φ = 10387725120.

The previous prime is 20903696357. The next prime is 20903696369. The reversal of 20903696368 is 86369630902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20903696369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4005003 + ... + 4010218.

Almost surely, 2^20903696368 is an apocalyptic number.

It is an amenable number.

20903696368 is a deficient number, since it is larger than the sum of its proper divisors (19845692280).

20903696368 is a wasteful number, since it uses less digits than its factorization.

20903696368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015392 (or 8015386 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 20903696368 in words is "twenty billion, nine hundred three million, six hundred ninety-six thousand, three hundred sixty-eight".