20004421464650 has 192 divisors, whose sum is σ = 43992671788800. Its totient is φ = 6625113292800.

The previous prime is 20004421464641. The next prime is 20004421464763. The reversal of 20004421464650 is 5646412440002.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4681584914 + ... + 4681589186.

It is an arithmetic number, because the mean of its divisors is an integer number (229128498900).

Almost surely, 2^{20004421464650} is an apocalyptic number.

20004421464650 is an abundant number, since it is smaller than the sum of its proper divisors (23988250324150).

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

20004421464650 is a wasteful number, since it uses less digits than its factorization.

20004421464650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489 (or 7484 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 20004421464650 in words is "twenty trillion, four billion, four hundred twenty-one million, four hundred sixty-four thousand, six hundred fifty".