3315605666 has 16 divisors (see below), whose sum is σ = 4989366720. Its totient is φ = 1652491920.

The previous prime is 3315605639. The next prime is 3315605669. The reversal of 3315605666 is 6665065133.

It is a super-3 number, since 3×3315605666³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3315605669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1625075 + ... + 1627113.

It is an arithmetic number, because the mean of its divisors is an integer number (311835420).

Almost surely, 2^3315605666 is an apocalyptic number.

3315605666 is a deficient number, since it is larger than the sum of its proper divisors (1673761054).

3315605666 is a wasteful number, since it uses less digits than its factorization.

3315605666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 3315605666 is about 57581.2961472734. The cubic root of 3315605666 is about 1491.1487119416.

The spelling of 3315605666 in words is "three billion, three hundred fifteen million, six hundred five thousand, six hundred sixty-six".