1336020085817 has 2 divisors, whose sum is σ = 1336020085818. Its totient is φ = 1336020085816.

The previous prime is 1336020085801. The next prime is 1336020085819. The reversal of 1336020085817 is 7185800206331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1310816618281 + 25203467536 = 1144909^2 + 158756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336020085817 - 2⁴ = 1336020085801 is a prime.

Together with 1336020085819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1336020085819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668010042908 + 668010042909.

It is an arithmetic number, because the mean of its divisors is an integer number (668010042909).

Almost surely, 2^{1336020085817} is an apocalyptic number.

It is an amenable number.

1336020085817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336020085817 is an equidigital number, since it uses as much as digits as its factorization.

1336020085817 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 44.

The spelling of 1336020085817 in words is "one trillion, three hundred thirty-six billion, twenty million, eighty-five thousand, eight hundred seventeen".