6555078684019 has 2 divisors, whose sum is σ = 6555078684020. Its totient is φ = 6555078684018.

The previous prime is 6555078683927. The next prime is 6555078684041. The reversal of 6555078684019 is 9104868705556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6555078684019 - 2⁷ = 6555078683891 is a prime.

It is a super-2 number, since 2×6555078684019² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6555078684079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277539342009 + 3277539342010.

It is an arithmetic number, because the mean of its divisors is an integer number (3277539342010).

Almost surely, 2^{6555078684019} is an apocalyptic number.

6555078684019 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555078684019 is an equidigital number, since it uses as much as digits as its factorization.

6555078684019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576000, while the sum is 64.

The spelling of 6555078684019 in words is "six trillion, five hundred fifty-five billion, seventy-eight million, six hundred eighty-four thousand, nineteen".