2006662853309 has 2 divisors, whose sum is σ = 2006662853310. Its totient is φ = 2006662853308.

The previous prime is 2006662853203. The next prime is 2006662853359. The reversal of 2006662853309 is 9033582666002.

It is an a-pointer prime, because the next prime (2006662853359) can be obtained adding 2006662853309 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1842412596025 + 164250257284 = 1357355^2 + 405278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2006662853309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006662853359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003331426654 + 1003331426655.

It is an arithmetic number, because the mean of its divisors is an integer number (1003331426655).

Almost surely, 2^{2006662853309} is an apocalyptic number.

It is an amenable number.

2006662853309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006662853309 is an equidigital number, since it uses as much as digits as its factorization.

2006662853309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 2006662853309 in words is "two trillion, six billion, six hundred sixty-two million, eight hundred fifty-three thousand, three hundred nine".