1001566650611 has 2 divisors, whose sum is σ = 1001566650612. Its totient is φ = 1001566650610.

The previous prime is 1001566650527. The next prime is 1001566650619. The reversal of 1001566650611 is 1160566651001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001566650611 is a prime.

It is a super-2 number, since 2×1001566650611² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1001566650619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500783325305 + 500783325306.

It is an arithmetic number, because the mean of its divisors is an integer number (500783325306).

Almost surely, 2^{1001566650611} is an apocalyptic number.

1001566650611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001566650611 is an equidigital number, since it uses as much as digits as its factorization.

1001566650611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1001566650611 in words is "one trillion, one billion, five hundred sixty-six million, six hundred fifty thousand, six hundred eleven".