166126211 has 2 divisors, whose sum is σ = 166126212. Its totient is φ = 166126210.

The previous prime is 166126201. The next prime is 166126223. The reversal of 166126211 is 112621661.

166126211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166126211 - 2¹⁸ = 165864067 is a prime.

It is not a weakly prime, because it can be changed into another prime (166126201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83063105 + 83063106.

It is an arithmetic number, because the mean of its divisors is an integer number (83063106).

Almost surely, 2^166126211 is an apocalyptic number.

166126211 is a deficient number, since it is larger than the sum of its proper divisors (1).

166126211 is an equidigital number, since it uses as much as digits as its factorization.

166126211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 26.

The square root of 166126211 is about 12888.9957327947. The cubic root of 166126211 is about 549.7257155790.

Adding to 166126211 its reverse (112621661), we get a palindrome (278747872).

It can be divided in two parts, 1661 and 26211, that added together give a palindrome (27872).

The spelling of 166126211 in words is "one hundred sixty-six million, one hundred twenty-six thousand, two hundred eleven".