20846045668008 has 128 divisors (see below), whose sum is σ = 56932073942400. Its totient is φ = 6308187110400.

The previous prime is 20846045668001. The next prime is 20846045668039. The reversal of 20846045668008 is 80086654064802.

It is a Cunningham number, because it is equal to 4565747²-1.

It is not an unprimeable number, because it can be changed into a prime (20846045668001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602661178 + ... + 602695766.

It is an arithmetic number, because the mean of its divisors is an integer number (444781827675).

Almost surely, 2^{20846045668008} is an apocalyptic number.

It is an amenable number.

20846045668008 is an abundant number, since it is smaller than the sum of its proper divisors (36086028274392).

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

20846045668008 is a wasteful number, since it uses less digits than its factorization.

20846045668008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37723 (or 37719 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 57.

The spelling of 20846045668008 in words is "twenty trillion, eight hundred forty-six billion, forty-five million, six hundred sixty-eight thousand, eight".