166285673 has 2 divisors, whose sum is σ = 166285674. Its totient is φ = 166285672.

The previous prime is 166285667. The next prime is 166285703. The reversal of 166285673 is 376582661.

166285673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142157929 + 24127744 = 11923^2 + 4912^2 .

It is a cyclic number.

It is not a de Polignac number, because 166285673 - 2⁴ = 166285657 is a prime.

It is not a weakly prime, because it can be changed into another prime (166282673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83142836 + 83142837.

It is an arithmetic number, because the mean of its divisors is an integer number (83142837).

Almost surely, 2^166285673 is an apocalyptic number.

It is an amenable number.

166285673 is a deficient number, since it is larger than the sum of its proper divisors (1).

166285673 is an equidigital number, since it uses as much as digits as its factorization.

166285673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 166285673 is about 12895.1802236339. The cubic root of 166285673 is about 549.9015504227.

The spelling of 166285673 in words is "one hundred sixty-six million, two hundred eighty-five thousand, six hundred seventy-three".