606106002181 has 2 divisors, whose sum is σ = 606106002182. Its totient is φ = 606106002180.

The previous prime is 606106002167. The next prime is 606106002191. The reversal of 606106002181 is 181200601606.

606106002181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543087933025 + 63018069156 = 736945^2 + 251034^2 .

It is a cyclic number.

It is not a de Polignac number, because 606106002181 - 2¹¹ = 606106000133 is a prime.

It is a super-2 number, since 2×606106002181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606106002191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303053001090 + 303053001091.

It is an arithmetic number, because the mean of its divisors is an integer number (303053001091).

Almost surely, 2^606106002181 is an apocalyptic number.

It is an amenable number.

606106002181 is a deficient number, since it is larger than the sum of its proper divisors (1).

606106002181 is an equidigital number, since it uses as much as digits as its factorization.

606106002181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 606106002181 its reverse (181200601606), we get a palindrome (787306603787).

The spelling of 606106002181 in words is "six hundred six billion, one hundred six million, two thousand, one hundred eighty-one".