6604256066 has 4 divisors (see below), whose sum is σ = 9906384102. Its totient is φ = 3302128032.

The previous prime is 6604256047. The next prime is 6604256069. The reversal of 6604256066 is 6606524066.

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., 5702515225 + 901740841 = 75515^2 + 30029^2 .

It is a super-3 number, since 3×6604256066³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6604256069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651064015 + ... + 1651064018.

Almost surely, 2^6604256066 is an apocalyptic number.

6604256066 is a deficient number, since it is larger than the sum of its proper divisors (3302128036).

6604256066 is a wasteful number, since it uses less digits than its factorization.

6604256066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302128035.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 6604256066 is about 81266.5741003028. The cubic root of 6604256066 is about 1876.1805723974.

The spelling of 6604256066 in words is "six billion, six hundred four million, two hundred fifty-six thousand, sixty-six".