166767675163 has 2 divisors, whose sum is σ = 166767675164. Its totient is φ = 166767675162.

The previous prime is 166767675127. The next prime is 166767675209. The reversal of 166767675163 is 361576767661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166767675163 is a prime.

It is a super-2 number, since 2×166767675163² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166767678163) 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, 83383837581 + 83383837582.

It is an arithmetic number, because the mean of its divisors is an integer number (83383837582).

Almost surely, 2^166767675163 is an apocalyptic number.

166767675163 is a deficient number, since it is larger than the sum of its proper divisors (1).

166767675163 is an equidigital number, since it uses as much as digits as its factorization.

166767675163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 61.

The spelling of 166767675163 in words is "one hundred sixty-six billion, seven hundred sixty-seven million, six hundred seventy-five thousand, one hundred sixty-three".