5378387666 has 8 divisors (see below), whose sum is σ = 8418345984. Its totient is φ = 2572272340.

The previous prime is 5378387659. The next prime is 5378387711. The reversal of 5378387666 is 6667838735.

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

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, 58460690 + ... + 58460781.

It is an arithmetic number, because the mean of its divisors is an integer number (1052293248).

Almost surely, 2^5378387666 is an apocalyptic number.

5378387666 is a deficient number, since it is larger than the sum of its proper divisors (3039958318).

5378387666 is a wasteful number, since it uses less digits than its factorization.

5378387666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116921496.

The product of its digits is 30481920, while the sum is 59.

The square root of 5378387666 is about 73337.4915442300. The cubic root of 5378387666 is about 1752.0669635258.

The spelling of 5378387666 in words is "five billion, three hundred seventy-eight million, three hundred eighty-seven thousand, six hundred sixty-six".