20733050920 has 32 divisors (see below), whose sum is σ = 47529546120. Its totient is φ = 8136743680.

The previous prime is 20733050879. The next prime is 20733050959. The reversal of 20733050920 is 2905033702.

It can be written as a sum of positive squares in 4 ways, for example, as 19914289924 + 818760996 = 141118^2 + 28614^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4887751 + ... + 4891990.

Almost surely, 2^20733050920 is an apocalyptic number.

20733050920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20733050920 is an abundant number, since it is smaller than the sum of its proper divisors (26796495200).

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

20733050920 is a wasteful number, since it uses less digits than its factorization.

20733050920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779805 (or 9779801 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 20733050920 in words is "twenty billion, seven hundred thirty-three million, fifty thousand, nine hundred twenty".