20444565616364 has 24 divisors (see below), whose sum is σ = 35842211544048. Its totient is φ = 10203935938560.

The previous prime is 20444565616327. The next prime is 20444565616393. The reversal of 20444565616364 is 46361656544402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38257472 + ... + 38788184.

It is an arithmetic number, because the mean of its divisors is an integer number (1493425481002).

Almost surely, 2^{20444565616364} is an apocalyptic number.

It is an amenable number.

20444565616364 is a deficient number, since it is larger than the sum of its proper divisors (15397645927684).

20444565616364 is a wasteful number, since it uses less digits than its factorization.

20444565616364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547985 (or 547983 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 56.

The spelling of 20444565616364 in words is "twenty trillion, four hundred forty-four billion, five hundred sixty-five million, six hundred sixteen thousand, three hundred sixty-four".