6666602 has 4 divisors (see below), whose sum is σ = 9999906. Its totient is φ = 3333300.

The previous prime is 6666599. The next prime is 6666613. The reversal of 6666602 is 2066666.

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., 6661561 + 5041 = 2581^2 + 71^2 .

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 as a sum of consecutive naturals, namely, 1666649 + ... + 1666652.

Almost surely, 2^6666602 is an apocalyptic number.

6666602 is a deficient number, since it is larger than the sum of its proper divisors (3333304).

6666602 is a wasteful number, since it uses less digits than its factorization.

6666602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333303.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6666602 is about 2581.9763747951. The cubic root of 6666602 is about 188.2065972376.

The spelling of 6666602 in words is "six million, six hundred sixty-six thousand, six hundred two".