127666163 has 2 divisors, whose sum is σ = 127666164. Its totient is φ = 127666162.

The previous prime is 127666159. The next prime is 127666177. The reversal of 127666163 is 361666721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127666163 - 2² = 127666159 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (127666103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63833081 + 63833082.

It is an arithmetic number, because the mean of its divisors is an integer number (63833082).

Almost surely, 2^127666163 is an apocalyptic number.

127666163 is a deficient number, since it is larger than the sum of its proper divisors (1).

127666163 is an equidigital number, since it uses as much as digits as its factorization.

127666163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 127666163 is about 11298.9452162580. The cubic root of 127666163 is about 503.5299048983.

The spelling of 127666163 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, one hundred sixty-three".