20796044820 has 48 divisors (see below), whose sum is σ = 58236319680. Its totient is φ = 5544907776.

The previous prime is 20796044809. The next prime is 20796044881. The reversal of 20796044820 is 2844069702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599511 + ... + 633249.

It is an arithmetic number, because the mean of its divisors is an integer number (1213256660).

Almost surely, 2^20796044820 is an apocalyptic number.

20796044820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20796044820 is an abundant number, since it is smaller than the sum of its proper divisors (37440274860).

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

20796044820 is a wasteful number, since it uses less digits than its factorization.

20796044820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44024 (or 44022 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20796044820 in words is "twenty billion, seven hundred ninety-six million, forty-four thousand, eight hundred twenty".