3660668138 has 8 divisors (see below), whose sum is σ = 5530506240. Its totient is φ = 1817166060.

The previous prime is 3660668093. The next prime is 3660668153. The reversal of 3660668138 is 8318660663.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3660668092 and 3660668101.

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, 6583658 + ... + 6584213.

It is an arithmetic number, because the mean of its divisors is an integer number (691313280).

Almost surely, 2^3660668138 is an apocalyptic number.

3660668138 is a deficient number, since it is larger than the sum of its proper divisors (1869838102).

3660668138 is a wasteful number, since it uses less digits than its factorization.

3660668138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13168012.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 3660668138 is about 60503.4555872638. The cubic root of 3660668138 is about 1541.1803142802.

The spelling of 3660668138 in words is "three billion, six hundred sixty million, six hundred sixty-eight thousand, one hundred thirty-eight".