845166533 has 4 divisors (see below), whose sum is σ = 881912928. Its totient is φ = 808420140.

The previous prime is 845166481. The next prime is 845166557. The reversal of 845166533 is 335661548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 845166533 - 2⁸ = 845166277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845166593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18373163 + ... + 18373208.

It is an arithmetic number, because the mean of its divisors is an integer number (220478232).

Almost surely, 2^845166533 is an apocalyptic number.

It is an amenable number.

845166533 is a deficient number, since it is larger than the sum of its proper divisors (36746395).

845166533 is a wasteful number, since it uses less digits than its factorization.

845166533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36746394.

The product of its digits is 259200, while the sum is 41.

The square root of 845166533 is about 29071.7480210599. The cubic root of 845166533 is about 945.4692976178.

The spelling of 845166533 in words is "eight hundred forty-five million, one hundred sixty-six thousand, five hundred thirty-three".