606325666 has 4 divisors (see below), whose sum is σ = 909488502. Its totient is φ = 303162832.

The previous prime is 606325661. The next prime is 606325691. The reversal of 606325666 is 666523606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 399800025 + 206525641 = 19995^2 + 14371^2 .

It is not an unprimeable number, because it can be changed into a prime (606325661) by changing a digit.

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 as a sum of consecutive naturals, namely, 151581415 + ... + 151581418.

Almost surely, 2^606325666 is an apocalyptic number.

606325666 is a deficient number, since it is larger than the sum of its proper divisors (303162836).

606325666 is a wasteful number, since it uses less digits than its factorization.

606325666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303162835.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 606325666 is about 24623.6810002079. The cubic root of 606325666 is about 846.3863502208.

The spelling of 606325666 in words is "six hundred six million, three hundred twenty-five thousand, six hundred sixty-six".