20005336704281 has 2 divisors, whose sum is σ = 20005336704282. Its totient is φ = 20005336704280.

The previous prime is 20005336704257. The next prime is 20005336704307. The reversal of 20005336704281 is 18240763350002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17353598035225 + 2651738669056 = 4165765^2 + 1628416^2 .

It is a cyclic number.

It is not a de Polignac number, because 20005336704281 - 2¹⁰ = 20005336703257 is a prime.

It is a super-2 number, since 2×20005336704281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20005336704211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002668352140 + 10002668352141.

It is an arithmetic number, because the mean of its divisors is an integer number (10002668352141).

Almost surely, 2^{20005336704281} is an apocalyptic number.

It is an amenable number.

20005336704281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20005336704281 is an equidigital number, since it uses as much as digits as its factorization.

20005336704281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 20005336704281 in words is "twenty trillion, five billion, three hundred thirty-six million, seven hundred four thousand, two hundred eighty-one".