160666277 has 2 divisors, whose sum is σ = 160666278. Its totient is φ = 160666276.

The previous prime is 160666217. The next prime is 160666291. The reversal of 160666277 is 772666061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157728481 + 2937796 = 12559^2 + 1714^2 .

It is an emirp because it is prime and its reverse (772666061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160666277 - 2²⁶ = 93557413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160666217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80333138 + 80333139.

It is an arithmetic number, because the mean of its divisors is an integer number (80333139).

Almost surely, 2^160666277 is an apocalyptic number.

It is an amenable number.

160666277 is a deficient number, since it is larger than the sum of its proper divisors (1).

160666277 is an equidigital number, since it uses as much as digits as its factorization.

160666277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 160666277 is about 12675.4201902738. The cubic root of 160666277 is about 543.6360439046.

The spelling of 160666277 in words is "one hundred sixty million, six hundred sixty-six thousand, two hundred seventy-seven".