166767675047 has 2 divisors, whose sum is σ = 166767675048. Its totient is φ = 166767675046.

The previous prime is 166767674987. The next prime is 166767675049. The reversal of 166767675047 is 740576767661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166767675047 - 2¹⁴ = 166767658663 is a prime.

It is a super-2 number, since 2×166767675047² (a number of 23 digits) contains 22 as substring.

Together with 166767675049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166767675049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83383837523 + 83383837524.

It is an arithmetic number, because the mean of its divisors is an integer number (83383837524).

Almost surely, 2^166767675047 is an apocalyptic number.

166767675047 is a deficient number, since it is larger than the sum of its proper divisors (1).

166767675047 is an equidigital number, since it uses as much as digits as its factorization.

166767675047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62233920, while the sum is 62.

The spelling of 166767675047 in words is "one hundred sixty-six billion, seven hundred sixty-seven million, six hundred seventy-five thousand, forty-seven".