166535132 has 12 divisors (see below), whose sum is σ = 292917240. Its totient is φ = 82844496.

The previous prime is 166535123. The next prime is 166535143. The reversal of 166535132 is 231535661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104882 + ... + 106457.

It is an arithmetic number, because the mean of its divisors is an integer number (24409770).

Almost surely, 2^166535132 is an apocalyptic number.

It is an amenable number.

166535132 is a deficient number, since it is larger than the sum of its proper divisors (126382108).

166535132 is a wasteful number, since it uses less digits than its factorization.

166535132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211540 (or 211538 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 166535132 is about 12904.8491661081. The cubic root of 166535132 is about 550.1763974138.

The spelling of 166535132 in words is "one hundred sixty-six million, five hundred thirty-five thousand, one hundred thirty-two".