20441447015164 has 12 divisors (see below), whose sum is σ = 40882894030384. Its totient is φ = 8760620149344.

The previous prime is 20441447015137. The next prime is 20441447015237. The reversal of 20441447015164 is 46151074414402.

20441447015164 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20441447015164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365025839529 + ... + 365025839584.

Almost surely, 2^{20441447015164} is an apocalyptic number.

It is an amenable number.

20441447015164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20441447015164 is a wasteful number, since it uses less digits than its factorization.

20441447015164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730051679124 (or 730051679122 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 20441447015164 in words is "twenty trillion, four hundred forty-one billion, four hundred forty-seven million, fifteen thousand, one hundred sixty-four".