166845027033 has 24 divisors (see below), whose sum is σ = 241689277440. Its totient is φ = 110911538400.

The previous prime is 166845026983. The next prime is 166845027101. The reversal of 166845027033 is 330720548661.

166845027033 is a `hidden beast` number, since 1 + 66 + 84 + 502 + 7 + 0 + 3 + 3 = 666.

It is not a de Polignac number, because 166845027033 - 2⁶ = 166845026969 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166845027033.

It is not an unprimeable number, because it can be changed into a prime (166845020033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5256910 + ... + 5288552.

It is an arithmetic number, because the mean of its divisors is an integer number (10070386560).

Almost surely, 2^166845027033 is an apocalyptic number.

It is an amenable number.

166845027033 is a deficient number, since it is larger than the sum of its proper divisors (74844250407).

166845027033 is a wasteful number, since it uses less digits than its factorization.

166845027033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33309 (or 33306 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 166845027033 in words is "one hundred sixty-six billion, eight hundred forty-five million, twenty-seven thousand, thirty-three".