6600001241 has 2 divisors, whose sum is σ = 6600001242. Its totient is φ = 6600001240.

The previous prime is 6600001237. The next prime is 6600001313. The reversal of 6600001241 is 1421000066.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5276569600 + 1323431641 = 72640^2 + 36379^2 .

It is a cyclic number.

It is not a de Polignac number, because 6600001241 - 2² = 6600001237 is a prime.

It is not a weakly prime, because it can be changed into another prime (6600001211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300000620 + 3300000621.

It is an arithmetic number, because the mean of its divisors is an integer number (3300000621).

Almost surely, 2^6600001241 is an apocalyptic number.

It is an amenable number.

6600001241 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600001241 is an equidigital number, since it uses as much as digits as its factorization.

6600001241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 6600001241 is about 81240.3916841863. The cubic root of 6600001241 is about 1875.7775729346. Note that the first 3 decimals are identical.

The spelling of 6600001241 in words is "six billion, six hundred million, one thousand, two hundred forty-one".