3660645188 has 6 divisors (see below), whose sum is σ = 6406129086. Its totient is φ = 1830322592.

The previous prime is 3660645151. The next prime is 3660645217. The reversal of 3660645188 is 8815460663.

It can be written as a sum of positive squares in only one way, i.e., 3304870144 + 355775044 = 57488^2 + 18862^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457580645 + ... + 457580652.

It is an arithmetic number, because the mean of its divisors is an integer number (1067688181).

Almost surely, 2^3660645188 is an apocalyptic number.

It is an amenable number.

3660645188 is a deficient number, since it is larger than the sum of its proper divisors (2745483898).

3660645188 is a wasteful number, since it uses less digits than its factorization.

3660645188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915161301 (or 915161299 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 3660645188 is about 60503.2659283778. The cubic root of 3660645188 is about 1541.1770935419.

The spelling of 3660645188 in words is "three billion, six hundred sixty million, six hundred forty-five thousand, one hundred eighty-eight".