3666319418 has 8 divisors (see below), whose sum is σ = 5648113812. Its totient is φ = 1783614816.

The previous prime is 3666319387. The next prime is 3666319427. The reversal of 3666319418 is 8149136663.

3666319418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3045163489 + 621155929 = 55183^2 + 24923^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24772355 + ... + 24772502.

Almost surely, 2^3666319418 is an apocalyptic number.

3666319418 is a deficient number, since it is larger than the sum of its proper divisors (1981794394).

3666319418 is a wasteful number, since it uses less digits than its factorization.

3666319418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49544896.

The product of its digits is 559872, while the sum is 47.

The square root of 3666319418 is about 60550.1397025639. The cubic root of 3666319418 is about 1541.9729895573.

The spelling of 3666319418 in words is "three billion, six hundred sixty-six million, three hundred nineteen thousand, four hundred eighteen".