166532116 has 12 divisors (see below), whose sum is σ = 299307988. Its totient is φ = 81015552.

The previous prime is 166532111. The next prime is 166532129. The reversal of 166532116 is 611235661.

It can be written as a sum of positive squares in 2 ways, for example, as 100922116 + 65610000 = 10046^2 + 8100^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166532111) 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, 562461 + ... + 562756.

Almost surely, 2^166532116 is an apocalyptic number.

It is an amenable number.

166532116 is a deficient number, since it is larger than the sum of its proper divisors (132775872).

166532116 is a wasteful number, since it uses less digits than its factorization.

166532116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125258 (or 1125256 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 166532116 is about 12904.7323102806. The cubic root of 166532116 is about 550.1730761085.

Adding to 166532116 its reverse (611235661), we get a palindrome (777767777).

It can be divided in two parts, 16653 and 2116, that added together give a square (18769 = 137²).

The spelling of 166532116 in words is "one hundred sixty-six million, five hundred thirty-two thousand, one hundred sixteen".