6555560066201 has 2 divisors, whose sum is σ = 6555560066202. Its totient is φ = 6555560066200.

The previous prime is 6555560066191. The next prime is 6555560066207. The reversal of 6555560066201 is 1026600655556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4049351290000 + 2506208776201 = 2012300^2 + 1583101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6555560066201 is a prime.

It is not a weakly prime, because it can be changed into another prime (6555560066207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277780033100 + 3277780033101.

It is an arithmetic number, because the mean of its divisors is an integer number (3277780033101).

Almost surely, 2^{6555560066201} is an apocalyptic number.

It is an amenable number.

6555560066201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555560066201 is an equidigital number, since it uses as much as digits as its factorization.

6555560066201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 6555560066201 in words is "six trillion, five hundred fifty-five billion, five hundred sixty million, sixty-six thousand, two hundred one".