22143294466 has 8 divisors (see below), whose sum is σ = 34112642940. Its totient is φ = 10772413488.

The previous prime is 22143294449. The next prime is 22143294487. The reversal of 22143294466 is 66449234122.

It can be written as a sum of positive squares in 2 ways, for example, as 16829613441 + 5313681025 = 129729^2 + 72895^2 .

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, 149616781 + ... + 149616928.

Almost surely, 2^22143294466 is an apocalyptic number.

22143294466 is a deficient number, since it is larger than the sum of its proper divisors (11969348474).

22143294466 is a wasteful number, since it uses less digits than its factorization.

22143294466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299233748.

The product of its digits is 497664, while the sum is 43.

The spelling of 22143294466 in words is "twenty-two billion, one hundred forty-three million, two hundred ninety-four thousand, four hundred sixty-six".