166061160056567 has 2 divisors, whose sum is σ = 166061160056568. Its totient is φ = 166061160056566.

The previous prime is 166061160056557. The next prime is 166061160056569. The reversal of 166061160056567 is 765650061160661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166061160056567 - 2⁶ = 166061160056503 is a prime.

Together with 166061160056569, 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 (166061160056569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83030580028283 + 83030580028284.

It is an arithmetic number, because the mean of its divisors is an integer number (83030580028284).

Almost surely, 2^{166061160056567} is an apocalyptic number.

166061160056567 is a deficient number, since it is larger than the sum of its proper divisors (1).

166061160056567 is an equidigital number, since it uses as much as digits as its factorization.

166061160056567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 166061160056567 in words is "one hundred sixty-six trillion, sixty-one billion, one hundred sixty million, fifty-six thousand, five hundred sixty-seven".