1199999166 has 16 divisors (see below), whose sum is σ = 2417518224. Its totient is φ = 397079744.

The previous prime is 1199999161. The next prime is 1199999189. The reversal of 1199999166 is 6619999911.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199999161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729105 + ... + 730748.

It is an arithmetic number, because the mean of its divisors is an integer number (151094889).

Almost surely, 2^1199999166 is an apocalyptic number.

1199999166 is an abundant number, since it is smaller than the sum of its proper divisors (1217519058).

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

1199999166 is a wasteful number, since it uses less digits than its factorization.

1199999166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459995.

The product of its digits is 2125764, while the sum is 60.

The square root of 1199999166 is about 34641.0041136223. The cubic root of 1199999166 is about 1062.6583230000.

The spelling of 1199999166 in words is "one billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, one hundred sixty-six".