5669788879666 has 8 divisors (see below), whose sum is σ = 8510659910784. Its totient is φ = 2832902242740.

The previous prime is 5669788879649. The next prime is 5669788879709. The reversal of 5669788879666 is 6669788879665.

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, 996094990 + ... + 996100681.

It is an arithmetic number, because the mean of its divisors is an integer number (1063832488848).

Almost surely, 2^{5669788879666} is an apocalyptic number.

5669788879666 is a deficient number, since it is larger than the sum of its proper divisors (2840871031118).

5669788879666 is a wasteful number, since it uses less digits than its factorization.

5669788879666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992197096.

The product of its digits is 79009136640, while the sum is 91.

Subtracting 5669788879666 from its reverse (6669788879665), we obtain a palindrome (999999999999).

The spelling of 5669788879666 in words is "five trillion, six hundred sixty-nine billion, seven hundred eighty-eight million, eight hundred seventy-nine thousand, six hundred sixty-six".