6666254032063 has 2 divisors, whose sum is σ = 6666254032064. Its totient is φ = 6666254032062.

The previous prime is 6666254032019. The next prime is 6666254032183. The reversal of 6666254032063 is 3602304526666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6666254032063 - 2²¹ = 6666251934911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6666254031998 and 6666254032016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6666254032663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333127016031 + 3333127016032.

It is an arithmetic number, because the mean of its divisors is an integer number (3333127016032).

Almost surely, 2^{6666254032063} is an apocalyptic number.

6666254032063 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666254032063 is an equidigital number, since it uses as much as digits as its factorization.

6666254032063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 49.

The spelling of 6666254032063 in words is "six trillion, six hundred sixty-six billion, two hundred fifty-four million, thirty-two thousand, sixty-three".