3551541444181 has 2 divisors, whose sum is σ = 3551541444182. Its totient is φ = 3551541444180.

The previous prime is 3551541444109. The next prime is 3551541444203. The reversal of 3551541444181 is 1814441451553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2251998443556 + 1299543000625 = 1500666^2 + 1139975^2 .

It is a cyclic number.

It is not a de Polignac number, because 3551541444181 - 2¹¹ = 3551541442133 is a prime.

It is a super-2 number, since 2×3551541444181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3551541444281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775770722090 + 1775770722091.

It is an arithmetic number, because the mean of its divisors is an integer number (1775770722091).

Almost surely, 2^{3551541444181} is an apocalyptic number.

It is an amenable number.

3551541444181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551541444181 is an equidigital number, since it uses as much as digits as its factorization.

3551541444181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768000, while the sum is 46.

The spelling of 3551541444181 in words is "three trillion, five hundred fifty-one billion, five hundred forty-one million, four hundred forty-four thousand, one hundred eighty-one".