2161717143413 has 2 divisors, whose sum is σ = 2161717143414. Its totient is φ = 2161717143412.

The previous prime is 2161717143361. The next prime is 2161717143433. The reversal of 2161717143413 is 3143417171612.

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., 2152083132004 + 9634011409 = 1466998^2 + 98153^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161717143413 - 2³⁶ = 2092997666677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161717143433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080858571706 + 1080858571707.

It is an arithmetic number, because the mean of its divisors is an integer number (1080858571707).

Almost surely, 2^{2161717143413} is an apocalyptic number.

It is an amenable number.

2161717143413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161717143413 is an equidigital number, since it uses as much as digits as its factorization.

2161717143413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The spelling of 2161717143413 in words is "two trillion, one hundred sixty-one billion, seven hundred seventeen million, one hundred forty-three thousand, four hundred thirteen".