8338392603661 has 2 divisors, whose sum is σ = 8338392603662. Its totient is φ = 8338392603660.

The previous prime is 8338392603641. The next prime is 8338392603767. The reversal of 8338392603661 is 1663062938338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5462943242436 + 2875449361225 = 2337294^2 + 1695715^2 .

It is a cyclic number.

It is not a de Polignac number, because 8338392603661 - 2¹¹ = 8338392601613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8338392603596 and 8338392603605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8338392603601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4169196301830 + 4169196301831.

It is an arithmetic number, because the mean of its divisors is an integer number (4169196301831).

Almost surely, 2^{8338392603661} is an apocalyptic number.

It is an amenable number.

8338392603661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8338392603661 is an equidigital number, since it uses as much as digits as its factorization.

8338392603661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 8338392603661 in words is "eight trillion, three hundred thirty-eight billion, three hundred ninety-two million, six hundred three thousand, six hundred sixty-one".