20346512663333 has 2 divisors, whose sum is σ = 20346512663334. Its totient is φ = 20346512663332.

The previous prime is 20346512663291. The next prime is 20346512663413. The reversal of 20346512663333 is 33336621564302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20344592208004 + 1920455329 = 4510498^2 + 43823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346512663333 - 2¹² = 20346512659237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20346512663833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173256331666 + 10173256331667.

It is an arithmetic number, because the mean of its divisors is an integer number (10173256331667).

Almost surely, 2^{20346512663333} is an apocalyptic number.

It is an amenable number.

20346512663333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346512663333 is an equidigital number, since it uses as much as digits as its factorization.

20346512663333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 47.

The spelling of 20346512663333 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, six hundred sixty-three thousand, three hundred thirty-three".