166533164 has 36 divisors (see below), whose sum is σ = 344783880. Its totient is φ = 70156800.

The previous prime is 166533161. The next prime is 166533193. The reversal of 166533164 is 461335661.

It is not an unprimeable number, because it can be changed into a prime (166533161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4364 + ... + 18764.

It is an arithmetic number, because the mean of its divisors is an integer number (9577330).

Almost surely, 2^166533164 is an apocalyptic number.

166533164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166533164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172391940).

166533164 is an abundant number, since it is smaller than the sum of its proper divisors (178250716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166533164 is a wasteful number, since it uses less digits than its factorization.

166533164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14478 (or 14469 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 166533164 is about 12904.7729154759. The cubic root of 166533164 is about 550.1742302006.

The spelling of 166533164 in words is "one hundred sixty-six million, five hundred thirty-three thousand, one hundred sixty-four".