3550218552197 has 2 divisors, whose sum is σ = 3550218552198. Its totient is φ = 3550218552196.

The previous prime is 3550218552173. The next prime is 3550218552229. The reversal of 3550218552197 is 7912558120553.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3401715451876 + 148503100321 = 1844374^2 + 385361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3550218552197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3550218542197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775109276098 + 1775109276099.

It is an arithmetic number, because the mean of its divisors is an integer number (1775109276099).

Almost surely, 2^{3550218552197} is an apocalyptic number.

It is an amenable number.

3550218552197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550218552197 is an equidigital number, since it uses as much as digits as its factorization.

3550218552197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 53.

The spelling of 3550218552197 in words is "three trillion, five hundred fifty billion, two hundred eighteen million, five hundred fifty-two thousand, one hundred ninety-seven".