5639666669366 has 32 divisors (see below), whose sum is σ = 9019352462400. Its totient is φ = 2635551179776.

The previous prime is 5639666669323. The next prime is 5639666669407. The reversal of 5639666669366 is 6639666669365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5482796 + ... + 6429648.

It is an arithmetic number, because the mean of its divisors is an integer number (281854764450).

Almost surely, 2^{5639666669366} is an apocalyptic number.

5639666669366 is a deficient number, since it is larger than the sum of its proper divisors (3379685793034).

5639666669366 is a wasteful number, since it uses less digits than its factorization.

5639666669366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948088.

The product of its digits is 6122200320, while the sum is 77.

Subtracting 5639666669366 from its reverse (6639666669365), we obtain a palindrome (999999999999).

The spelling of 5639666669366 in words is "five trillion, six hundred thirty-nine billion, six hundred sixty-six million, six hundred sixty-nine thousand, three hundred sixty-six".