6355540666043 has 2 divisors, whose sum is σ = 6355540666044. Its totient is φ = 6355540666042.

The previous prime is 6355540665973. The next prime is 6355540666093. The reversal of 6355540666043 is 3406660455536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6355540666043 - 2⁸ = 6355540665787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6355540666093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177770333021 + 3177770333022.

It is an arithmetic number, because the mean of its divisors is an integer number (3177770333022).

Almost surely, 2^{6355540666043} is an apocalyptic number.

6355540666043 is a deficient number, since it is larger than the sum of its proper divisors (1).

6355540666043 is an equidigital number, since it uses as much as digits as its factorization.

6355540666043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328000, while the sum is 53.

The spelling of 6355540666043 in words is "six trillion, three hundred fifty-five billion, five hundred forty million, six hundred sixty-six thousand, forty-three".