166360243 has 6 divisors (see below), whose sum is σ = 193521156. Its totient is φ = 142594452.

The previous prime is 166360199. The next prime is 166360261. The reversal of 166360243 is 342063661.

It is not a de Polignac number, because 166360243 - 2¹³ = 166352051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166363243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1697505 + ... + 1697602.

It is an arithmetic number, because the mean of its divisors is an integer number (32253526).

Almost surely, 2^166360243 is an apocalyptic number.

166360243 is a deficient number, since it is larger than the sum of its proper divisors (27160913).

166360243 is an equidigital number, since it uses as much as digits as its factorization.

166360243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395121 (or 3395114 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 166360243 is about 12898.0712899255. The cubic root of 166360243 is about 549.9837383622.

The spelling of 166360243 in words is "one hundred sixty-six million, three hundred sixty thousand, two hundred forty-three".