6666727901233 has 2 divisors, whose sum is σ = 6666727901234. Its totient is φ = 6666727901232.

The previous prime is 6666727901227. The next prime is 6666727901269. The reversal of 6666727901233 is 3321097276666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5795656611889 + 871071289344 = 2407417^2 + 933312^2 .

It is a cyclic number.

It is not a de Polignac number, because 6666727901233 - 2⁵ = 6666727901201 is a prime.

It is a super-2 number, since 2×6666727901233² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6666727901833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333363950616 + 3333363950617.

It is an arithmetic number, because the mean of its divisors is an integer number (3333363950617).

Almost surely, 2^{6666727901233} is an apocalyptic number.

It is an amenable number.

6666727901233 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666727901233 is an equidigital number, since it uses as much as digits as its factorization.

6666727901233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 58.

The spelling of 6666727901233 in words is "six trillion, six hundred sixty-six billion, seven hundred twenty-seven million, nine hundred one thousand, two hundred thirty-three".