166601112 has 16 divisors (see below), whose sum is σ = 416502840. Its totient is φ = 55533696.

The previous prime is 166601093. The next prime is 166601117. The reversal of 166601112 is 211106661.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 6941713 = 166601112 / (1 + 6 + 6 + 6 + 0 + 1 + 1 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166601117) 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 3 ways as a sum of consecutive naturals, for example, 3470833 + ... + 3470880.

Almost surely, 2^166601112 is an apocalyptic number.

166601112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166601112 is an abundant number, since it is smaller than the sum of its proper divisors (249901728).

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

166601112 is a wasteful number, since it uses less digits than its factorization.

166601112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941722 (or 6941718 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 166601112 is about 12907.4053163291. The cubic root of 166601112 is about 550.2490464405.

Adding to 166601112 its reverse (211106661), we get a palindrome (377707773).

The spelling of 166601112 in words is "one hundred sixty-six million, six hundred one thousand, one hundred twelve".