20333346901897 has 2 divisors, whose sum is σ = 20333346901898. Its totient is φ = 20333346901896.

The previous prime is 20333346901871. The next prime is 20333346902039. The reversal of 20333346901897 is 79810964333302.

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., 14187132429561 + 6146214472336 = 3766581^2 + 2479156^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333346901897 - 2³¹ = 20331199418249 is a prime.

It is not a weakly prime, because it can be changed into another prime (20333346901837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166673450948 + 10166673450949.

It is an arithmetic number, because the mean of its divisors is an integer number (10166673450949).

Almost surely, 2^{20333346901897} is an apocalyptic number.

It is an amenable number.

20333346901897 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333346901897 is an equidigital number, since it uses as much as digits as its factorization.

20333346901897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 58.

The spelling of 20333346901897 in words is "twenty trillion, three hundred thirty-three billion, three hundred forty-six million, nine hundred one thousand, eight hundred ninety-seven".