2164411241449 has 2 divisors, whose sum is σ = 2164411241450. Its totient is φ = 2164411241448.

The previous prime is 2164411241383. The next prime is 2164411241467. The reversal of 2164411241449 is 9441421144612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2031317609049 + 133093632400 = 1425243^2 + 364820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164411241449 is a prime.

It is a super-2 number, since 2×2164411241449² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2164411248449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082205620724 + 1082205620725.

It is an arithmetic number, because the mean of its divisors is an integer number (1082205620725).

Almost surely, 2^{2164411241449} is an apocalyptic number.

It is an amenable number.

2164411241449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164411241449 is an equidigital number, since it uses as much as digits as its factorization.

2164411241449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The spelling of 2164411241449 in words is "two trillion, one hundred sixty-four billion, four hundred eleven million, two hundred forty-one thousand, four hundred forty-nine".