20200573056 has 128 divisors (see below), whose sum is σ = 54154900800. Its totient is φ = 6671462400.

The previous prime is 20200573033. The next prime is 20200573061. The reversal of 20200573056 is 65037500202.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35377251 + ... + 35377821.

Almost surely, 2^20200573056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200573056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27077450400).

20200573056 is an abundant number, since it is smaller than the sum of its proper divisors (33954327744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20200573056 is a wasteful number, since it uses less digits than its factorization.

20200573056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 20200573056 in words is "twenty billion, two hundred million, five hundred seventy-three thousand, fifty-six".