6663223665139 has 2 divisors, whose sum is σ = 6663223665140. Its totient is φ = 6663223665138.

The previous prime is 6663223665041. The next prime is 6663223665143. The reversal of 6663223665139 is 9315663223666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6663223665139 - 2⁴¹ = 4464200409587 is a prime.

It is a super-2 number, since 2×6663223665139² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6663223668139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331611832569 + 3331611832570.

It is an arithmetic number, because the mean of its divisors is an integer number (3331611832570).

Almost surely, 2^{6663223665139} is an apocalyptic number.

6663223665139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663223665139 is an equidigital number, since it uses as much as digits as its factorization.

6663223665139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37791360, while the sum is 58.

The spelling of 6663223665139 in words is "six trillion, six hundred sixty-three billion, two hundred twenty-three million, six hundred sixty-five thousand, one hundred thirty-nine".