20444006266 has 8 divisors (see below), whose sum is σ = 30667433364. Its totient is φ = 10221528480.

The previous prime is 20444006249. The next prime is 20444006267. The reversal of 20444006266 is 66260044402.

It can be written as a sum of positive squares in 2 ways, for example, as 17867936241 + 2576070025 = 133671^2 + 50755^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20444006267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180795 + ... + 271246.

Almost surely, 2^20444006266 is an apocalyptic number.

20444006266 is a deficient number, since it is larger than the sum of its proper divisors (10223427098).

20444006266 is a wasteful number, since it uses less digits than its factorization.

20444006266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474656.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 20444006266 in words is "twenty billion, four hundred forty-four million, six thousand, two hundred sixty-six".