20303543056 has 20 divisors (see below), whose sum is σ = 39343767552. Its totient is φ = 10150312736.

The previous prime is 20303543053. The next prime is 20303543063. The reversal of 20303543056 is 65034530302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20303543053) 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, 28401 + ... + 203503.

Almost surely, 2^20303543056 is an apocalyptic number.

It is an amenable number.

20303543056 is a deficient number, since it is larger than the sum of its proper divisors (19040224496).

20303543056 is a wasteful number, since it uses less digits than its factorization.

20303543056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182358 (or 182352 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 20303543056 in words is "twenty billion, three hundred three million, five hundred forty-three thousand, fifty-six".