166330443011 has 2 divisors, whose sum is σ = 166330443012. Its totient is φ = 166330443010.

The previous prime is 166330443001. The next prime is 166330443047. The reversal of 166330443011 is 110344033661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166330443011 - 2¹⁸ = 166330180867 is a prime.

It is a super-2 number, since 2×166330443011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166330443001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83165221505 + 83165221506.

It is an arithmetic number, because the mean of its divisors is an integer number (83165221506).

Almost surely, 2^166330443011 is an apocalyptic number.

166330443011 is a deficient number, since it is larger than the sum of its proper divisors (1).

166330443011 is an equidigital number, since it uses as much as digits as its factorization.

166330443011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 166330443011 its reverse (110344033661), we get a palindrome (276674476672).

The spelling of 166330443011 in words is "one hundred sixty-six billion, three hundred thirty million, four hundred forty-three thousand, eleven".