3905452666 has 8 divisors (see below), whose sum is σ = 5865316884. Its totient is φ = 1950347040.

The previous prime is 3905452657. The next prime is 3905452709. The reversal of 3905452666 is 6662545093.

It can be written as a sum of positive squares in 2 ways, for example, as 3382004025 + 523448641 = 58155^2 + 22879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187595 + ... + 1190878.

Almost surely, 2^3905452666 is an apocalyptic number.

3905452666 is a deficient number, since it is larger than the sum of its proper divisors (1959864218).

3905452666 is a wasteful number, since it uses less digits than its factorization.

3905452666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379296.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The square root of 3905452666 is about 62493.6210024671. The cubic root of 3905452666 is about 1574.7941501021.

The spelling of 3905452666 in words is "three billion, nine hundred five million, four hundred fifty-two thousand, six hundred sixty-six".