20444543621204 has 48 divisors (see below), whose sum is σ = 37953141795072. Its totient is φ = 9603046267392.

The previous prime is 20444543621143. The next prime is 20444543621213. The reversal of 20444543621204 is 40212634544402.

It is a congruent number.

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, 82327994 + ... + 82575950.

It is an arithmetic number, because the mean of its divisors is an integer number (790690454064).

Almost surely, 2^{20444543621204} is an apocalyptic number.

It is an amenable number.

20444543621204 is a deficient number, since it is larger than the sum of its proper divisors (17508598173868).

20444543621204 is a wasteful number, since it uses less digits than its factorization.

20444543621204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250232 (or 250230 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 41.

The spelling of 20444543621204 in words is "twenty trillion, four hundred forty-four billion, five hundred forty-three million, six hundred twenty-one thousand, two hundred four".