2117366165353 has 2 divisors, whose sum is σ = 2117366165354. Its totient is φ = 2117366165352.

The previous prime is 2117366165303. The next prime is 2117366165399. The reversal of 2117366165353 is 3535616637112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1717179609744 + 400186555609 = 1310412^2 + 632603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2117366165353 is a prime.

It is a super-2 number, since 2×2117366165353² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2117366165297 and 2117366165306.

It is not a weakly prime, because it can be changed into another prime (2117366165303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058683082676 + 1058683082677.

It is an arithmetic number, because the mean of its divisors is an integer number (1058683082677).

Almost surely, 2^{2117366165353} is an apocalyptic number.

It is an amenable number.

2117366165353 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117366165353 is an equidigital number, since it uses as much as digits as its factorization.

2117366165353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 49.

The spelling of 2117366165353 in words is "two trillion, one hundred seventeen billion, three hundred sixty-six million, one hundred sixty-five thousand, three hundred fifty-three".