20334926626621 has 2 divisors, whose sum is σ = 20334926626622. Its totient is φ = 20334926626620.

The previous prime is 20334926626577. The next prime is 20334926626691. The reversal of 20334926626621 is 12662662943302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16205857922500 + 4129068704121 = 4025650^2 + 2032011^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334926626621 - 2¹⁹ = 20334926102333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334926626691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167463313310 + 10167463313311.

It is an arithmetic number, because the mean of its divisors is an integer number (10167463313311).

Almost surely, 2^{20334926626621} is an apocalyptic number.

It is an amenable number.

20334926626621 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334926626621 is an equidigital number, since it uses as much as digits as its factorization.

20334926626621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 20334926626621 in words is "twenty trillion, three hundred thirty-four billion, nine hundred twenty-six million, six hundred twenty-six thousand, six hundred twenty-one".