1666193134 has 8 divisors (see below), whose sum is σ = 2502983448. Its totient is φ = 831865320.

The previous prime is 1666193131. The next prime is 1666193141. The reversal of 1666193134 is 4313916661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666193131) 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, 613932 + ... + 616639.

It is an arithmetic number, because the mean of its divisors is an integer number (312872931).

Almost surely, 2^1666193134 is an apocalyptic number.

1666193134 is a deficient number, since it is larger than the sum of its proper divisors (836790314).

1666193134 is a wasteful number, since it uses less digits than its factorization.

1666193134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231250.

The product of its digits is 69984, while the sum is 40.

The square root of 1666193134 is about 40819.0290673357. The cubic root of 1666193134 is about 1185.5188038493.

The spelling of 1666193134 in words is "one billion, six hundred sixty-six million, one hundred ninety-three thousand, one hundred thirty-four".