3555340991999 has 2 divisors, whose sum is σ = 3555340992000. Its totient is φ = 3555340991998.

The previous prime is 3555340991933. The next prime is 3555340992121. The reversal of 3555340991999 is 9991990435553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3555340991999 - 2³⁶ = 3486621515263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3555340991399) 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, 1777670495999 + 1777670496000.

It is an arithmetic number, because the mean of its divisors is an integer number (1777670496000).

Almost surely, 2^{3555340991999} is an apocalyptic number.

3555340991999 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555340991999 is an equidigital number, since it uses as much as digits as its factorization.

3555340991999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 265720500, while the sum is 71.

The spelling of 3555340991999 in words is "three trillion, five hundred fifty-five billion, three hundred forty million, nine hundred ninety-one thousand, nine hundred ninety-nine".