20889040304046 has 16 divisors (see below), whose sum is σ = 41894454096000. Its totient is φ = 6943617853368.

The previous prime is 20889040304039. The next prime is 20889040304051. The reversal of 20889040304046 is 64040304098802.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20889040303986 and 20889040304004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848892996 + ... + 4848897303.

It is an arithmetic number, because the mean of its divisors is an integer number (2618403381000).

Almost surely, 2^{20889040304046} is an apocalyptic number.

20889040304046 is an abundant number, since it is smaller than the sum of its proper divisors (21005413791954).

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

20889040304046 is a wasteful number, since it uses less digits than its factorization.

20889040304046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9697790663.

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 20889040304046 in words is "twenty trillion, eight hundred eighty-nine billion, forty million, three hundred four thousand, forty-six".