166600012 has 12 divisors (see below), whose sum is σ = 301603680. Its totient is φ = 80427536.

The previous prime is 166600003. The next prime is 166600013. The reversal of 166600012 is 210006661.

It is not an unprimeable number, because it can be changed into a prime (166600013) 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, 717988 + ... + 718219.

It is an arithmetic number, because the mean of its divisors is an integer number (25133640).

Almost surely, 2^166600012 is an apocalyptic number.

It is an amenable number.

166600012 is a deficient number, since it is larger than the sum of its proper divisors (135003668).

166600012 is a wasteful number, since it uses less digits than its factorization.

166600012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436240 (or 1436238 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 166600012 is about 12907.3627050610. The cubic root of 166600012 is about 550.2478354136.

Adding to 166600012 its reverse (210006661), we get a palindrome (376606673).

The spelling of 166600012 in words is "one hundred sixty-six million, six hundred thousand, twelve".