5665859638 has 8 divisors (see below), whose sum is σ = 8581302288. Its totient is φ = 2805425544.

The previous prime is 5665859581. The next prime is 5665859687. The reversal of 5665859638 is 8369585665.

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

It is a congruent 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, 13751881 + ... + 13752292.

It is an arithmetic number, because the mean of its divisors is an integer number (1072662786).

Almost surely, 2^5665859638 is an apocalyptic number.

5665859638 is a deficient number, since it is larger than the sum of its proper divisors (2915442650).

5665859638 is a wasteful number, since it uses less digits than its factorization.

5665859638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27504278.

The product of its digits is 46656000, while the sum is 61.

The square root of 5665859638 is about 75271.9047055407. The cubic root of 5665859638 is about 1782.7424415384.

The spelling of 5665859638 in words is "five billion, six hundred sixty-five million, eight hundred fifty-nine thousand, six hundred thirty-eight".