166797066240011 has 2 divisors, whose sum is σ = 166797066240012. Its totient is φ = 166797066240010.

The previous prime is 166797066239987. The next prime is 166797066240017. The reversal of 166797066240011 is 110042660797661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166797066240011 - 2¹⁰ = 166797066238987 is a prime.

It is a super-2 number, since 2×166797066240011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166797066240017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83398533120005 + 83398533120006.

It is an arithmetic number, because the mean of its divisors is an integer number (83398533120006).

Almost surely, 2^{166797066240011} is an apocalyptic number.

166797066240011 is a deficient number, since it is larger than the sum of its proper divisors (1).

166797066240011 is an equidigital number, since it uses as much as digits as its factorization.

166797066240011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 166797066240011 in words is "one hundred sixty-six trillion, seven hundred ninety-seven billion, sixty-six million, two hundred forty thousand, eleven".