20980859044 has 24 divisors (see below), whose sum is σ = 37231496568. Its totient is φ = 10343381760.

The previous prime is 20980859033. The next prime is 20980859069. The reversal of 20980859044 is 44095808902.

It can be written as a sum of positive squares in 4 ways, for example, as 4044960000 + 16935899044 = 63600^2 + 130138^2 .

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, 1063914 + ... + 1083454.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312357).

Almost surely, 2^20980859044 is an apocalyptic number.

It is an amenable number.

20980859044 is a deficient number, since it is larger than the sum of its proper divisors (16250637524).

20980859044 is a wasteful number, since it uses less digits than its factorization.

20980859044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23295 (or 23293 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 20980859044 in words is "twenty billion, nine hundred eighty million, eight hundred fifty-nine thousand, forty-four".