655556661436067 has 2 divisors, whose sum is σ = 655556661436068. Its totient is φ = 655556661436066.

The previous prime is 655556661436051. The next prime is 655556661436151. The reversal of 655556661436067 is 760634166655556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655556661436067 - 2⁴ = 655556661436051 is a prime.

It is not a weakly prime, because it can be changed into another prime (655556661436367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327778330718033 + 327778330718034.

It is an arithmetic number, because the mean of its divisors is an integer number (327778330718034).

Almost surely, 2^{655556661436067} is an apocalyptic number.

655556661436067 is a deficient number, since it is larger than the sum of its proper divisors (1).

655556661436067 is an equidigital number, since it uses as much as digits as its factorization.

655556661436067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440000, while the sum is 71.

The spelling of 655556661436067 in words is "six hundred fifty-five trillion, five hundred fifty-six billion, six hundred sixty-one million, four hundred thirty-six thousand, sixty-seven".