166011709711 has 2 divisors, whose sum is σ = 166011709712. Its totient is φ = 166011709710.

The previous prime is 166011709709. The next prime is 166011709727. The reversal of 166011709711 is 117907110661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166011709711 - 2¹ = 166011709709 is a prime.

It is a super-2 number, since 2×166011709711² (a number of 23 digits) contains 22 as substring.

Together with 166011709709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166011709211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83005854855 + 83005854856.

It is an arithmetic number, because the mean of its divisors is an integer number (83005854856).

Almost surely, 2^166011709711 is an apocalyptic number.

166011709711 is a deficient number, since it is larger than the sum of its proper divisors (1).

166011709711 is an equidigital number, since it uses as much as digits as its factorization.

166011709711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 40.

The spelling of 166011709711 in words is "one hundred sixty-six billion, eleven million, seven hundred nine thousand, seven hundred eleven".