166246811 has 2 divisors, whose sum is σ = 166246812. Its totient is φ = 166246810.

The previous prime is 166246807. The next prime is 166246819. The reversal of 166246811 is 118642661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166246811 - 2² = 166246807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166246819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83123405 + 83123406.

It is an arithmetic number, because the mean of its divisors is an integer number (83123406).

Almost surely, 2^166246811 is an apocalyptic number.

166246811 is a deficient number, since it is larger than the sum of its proper divisors (1).

166246811 is an equidigital number, since it uses as much as digits as its factorization.

166246811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 166246811 is about 12893.6732935188. The cubic root of 166246811 is about 549.8587086099.

The spelling of 166246811 in words is "one hundred sixty-six million, two hundred forty-six thousand, eight hundred eleven".