20444444466 has 8 divisors (see below), whose sum is σ = 40888888944. Its totient is φ = 6814814820.

The previous prime is 20444444437. The next prime is 20444444491. The reversal of 20444444466 is 66444444402.

It is a happy number.

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

20444444466 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703703700 + ... + 1703703711.

It is an arithmetic number, because the mean of its divisors is an integer number (5111111118).

Almost surely, 2^20444444466 is an apocalyptic number.

20444444466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20444444466 is a wasteful number, since it uses less digits than its factorization.

20444444466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407407416.

The product of its (nonzero) digits is 1179648, while the sum is 42.

Adding to 20444444466 its reverse (66444444402), we get a palindrome (86888888868).

The spelling of 20444444466 in words is "twenty billion, four hundred forty-four million, four hundred forty-four thousand, four hundred sixty-six".