2666324449 has 2 divisors, whose sum is σ = 2666324450. Its totient is φ = 2666324448.

The previous prime is 2666324417. The next prime is 2666324471. The reversal of 2666324449 is 9444236662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2259576225 + 406748224 = 47535^2 + 20168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666324449 - 2⁵ = 2666324417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2666324399 and 2666324408.

It is not a weakly prime, because it can be changed into another prime (2666327449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333162224 + 1333162225.

It is an arithmetic number, because the mean of its divisors is an integer number (1333162225).

Almost surely, 2^2666324449 is an apocalyptic number.

It is an amenable number.

2666324449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666324449 is an equidigital number, since it uses as much as digits as its factorization.

2666324449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 46.

The square root of 2666324449 is about 51636.4643348090. The cubic root of 2666324449 is about 1386.6632260442.

The spelling of 2666324449 in words is "two billion, six hundred sixty-six million, three hundred twenty-four thousand, four hundred forty-nine".