349115666 has 12 divisors (see below), whose sum is σ = 547433502. Its totient is φ = 166967856.

The previous prime is 349115629. The next prime is 349115677. The reversal of 349115666 is 666511943.

It can be written as a sum of positive squares in only one way, i.e., 239599441 + 109516225 = 15479^2 + 10465^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 163931 + ... + 166046.

Almost surely, 2^349115666 is an apocalyptic number.

349115666 is a deficient number, since it is larger than the sum of its proper divisors (198317836).

349115666 is a wasteful number, since it uses less digits than its factorization.

349115666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330025 (or 330002 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 349115666 is about 18684.6371653292. The cubic root of 349115666 is about 704.1358330037.

The spelling of 349115666 in words is "three hundred forty-nine million, one hundred fifteen thousand, six hundred sixty-six".