5200665566611 has 2 divisors, whose sum is σ = 5200665566612. Its totient is φ = 5200665566610.

The previous prime is 5200665566557. The next prime is 5200665566617. The reversal of 5200665566611 is 1166655660025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5200665566611 - 2³¹ = 5198518082963 is a prime.

It is not a weakly prime, because it can be changed into another prime (5200665566617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600332783305 + 2600332783306.

It is an arithmetic number, because the mean of its divisors is an integer number (2600332783306).

Almost surely, 2^{5200665566611} is an apocalyptic number.

5200665566611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5200665566611 is an equidigital number, since it uses as much as digits as its factorization.

5200665566611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 5200665566611 in words is "five trillion, two hundred billion, six hundred sixty-five million, five hundred sixty-six thousand, six hundred eleven".