166100012 has 24 divisors (see below), whose sum is σ = 313458096. Its totient is φ = 76557888.

The previous prime is 166099991. The next prime is 166100029. The reversal of 166100012 is 210001661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47558 + ... + 50930.

It is an arithmetic number, because the mean of its divisors is an integer number (13060754).

Almost surely, 2^166100012 is an apocalyptic number.

It is an amenable number.

166100012 is a deficient number, since it is larger than the sum of its proper divisors (147358084).

166100012 is a wasteful number, since it uses less digits than its factorization.

166100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337 (or 4335 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 166100012 is about 12887.9793606290. The cubic root of 166100012 is about 549.6968158224.

Adding to 166100012 its reverse (210001661), we get a palindrome (376101673).

The spelling of 166100012 in words is "one hundred sixty-six million, one hundred thousand, twelve".