2164626201349 has 2 divisors, whose sum is σ = 2164626201350. Its totient is φ = 2164626201348.

The previous prime is 2164626201337. The next prime is 2164626201401. The reversal of 2164626201349 is 9431026264612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1581037156449 + 583589044900 = 1257393^2 + 763930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164626201349 - 2⁹ = 2164626200837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164626201299 and 2164626201308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164626201649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082313100674 + 1082313100675.

It is an arithmetic number, because the mean of its divisors is an integer number (1082313100675).

Almost surely, 2^{2164626201349} is an apocalyptic number.

It is an amenable number.

2164626201349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164626201349 is an equidigital number, since it uses as much as digits as its factorization.

2164626201349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 2164626201349 in words is "two trillion, one hundred sixty-four billion, six hundred twenty-six million, two hundred one thousand, three hundred forty-nine".