20443081584028 has 6 divisors (see below), whose sum is σ = 35775392772056. Its totient is φ = 10221540792012.

The previous prime is 20443081584017. The next prime is 20443081584031. The reversal of 20443081584028 is 82048518034402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555385198000 + ... + 2555385198007.

Almost surely, 2^{20443081584028} is an apocalyptic number.

It is an amenable number.

20443081584028 is a deficient number, since it is larger than the sum of its proper divisors (15332311188028).

20443081584028 is a wasteful number, since it uses less digits than its factorization.

20443081584028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110770396011 (or 5110770396009 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 49.

The spelling of 20443081584028 in words is "twenty trillion, four hundred forty-three billion, eighty-one million, five hundred eighty-four thousand, twenty-eight".