345133666 has 4 divisors (see below), whose sum is σ = 517700502. Its totient is φ = 172566832.

The previous prime is 345133639. The next prime is 345133667. The reversal of 345133666 is 666331543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666331543 = 463 ⋅1439161.

It can be written as a sum of positive squares in only one way, i.e., 345030625 + 103041 = 18575^2 + 321^2 .

It is a super-3 number, since 3×345133666³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (345133667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86283415 + ... + 86283418.

Almost surely, 2^345133666 is an apocalyptic number.

345133666 is a deficient number, since it is larger than the sum of its proper divisors (172566836).

345133666 is a wasteful number, since it uses less digits than its factorization.

345133666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172566835.

The product of its digits is 116640, while the sum is 37.

The square root of 345133666 is about 18577.7734403238. The cubic root of 345133666 is about 701.4484741487.

The spelling of 345133666 in words is "three hundred forty-five million, one hundred thirty-three thousand, six hundred sixty-six".