22379865866 has 8 divisors (see below), whose sum is σ = 35544492900. Its totient is φ = 10531701568.

The previous prime is 22379865829. The next prime is 22379865923. The reversal of 22379865866 is 66856897322.

It can be written as a sum of positive squares in 2 ways, for example, as 22220374225 + 159491641 = 149065^2 + 12629^2 .

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 = 22379865799 and 22379865808.

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, 329115641 + ... + 329115708.

Almost surely, 2^22379865866 is an apocalyptic number.

22379865866 is a deficient number, since it is larger than the sum of its proper divisors (13164627034).

22379865866 is a wasteful number, since it uses less digits than its factorization.

22379865866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658231368.

The product of its digits is 52254720, while the sum is 62.

The spelling of 22379865866 in words is "twenty-two billion, three hundred seventy-nine million, eight hundred sixty-five thousand, eight hundred sixty-six".