166066363 has 2 divisors, whose sum is σ = 166066364. Its totient is φ = 166066362.

The previous prime is 166066357. The next prime is 166066393. The reversal of 166066363 is 363660661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166066363 - 2¹⁷ = 165935291 is a prime.

It is not a weakly prime, because it can be changed into another prime (166066393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83033181 + 83033182.

It is an arithmetic number, because the mean of its divisors is an integer number (83033182).

Almost surely, 2^166066363 is an apocalyptic number.

166066363 is a deficient number, since it is larger than the sum of its proper divisors (1).

166066363 is an equidigital number, since it uses as much as digits as its factorization.

166066363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 166066363 is about 12886.6738532486. The cubic root of 166066363 is about 549.6596936149.

The spelling of 166066363 in words is "one hundred sixty-six million, sixty-six thousand, three hundred sixty-three".