16766201 has 2 divisors, whose sum is σ = 16766202. Its totient is φ = 16766200.

The previous prime is 16766161. The next prime is 16766203. The reversal of 16766201 is 10266761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 7974976 = 2965^2 + 2824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16766201 is a prime.

It is a super-2 number, since 2×16766201² = 562210991944802, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 16766203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16766203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8383100 + 8383101.

It is an arithmetic number, because the mean of its divisors is an integer number (8383101).

Almost surely, 2^16766201 is an apocalyptic number.

It is an amenable number.

16766201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16766201 is an equidigital number, since it uses as much as digits as its factorization.

16766201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16766201 is about 4094.6551747369. The cubic root of 16766201 is about 255.9439625473.

The spelling of 16766201 in words is "sixteen million, seven hundred sixty-six thousand, two hundred one".