20444035181 has 8 divisors (see below), whose sum is σ = 20548365600. Its totient is φ = 20339931312.

The previous prime is 20444035177. The next prime is 20444035193. The reversal of 20444035181 is 18153044402.

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

It is a cyclic number.

It is not a de Polignac number, because 20444035181 - 2² = 20444035177 is a prime.

It is a super-2 number, since 2×20444035181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444035481) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 125795 + ... + 238143.

It is an arithmetic number, because the mean of its divisors is an integer number (2568545700).

Almost surely, 2^20444035181 is an apocalyptic number.

It is an amenable number.

20444035181 is a deficient number, since it is larger than the sum of its proper divisors (104330419).

20444035181 is a wasteful number, since it uses less digits than its factorization.

20444035181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113275.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 20444035181 its reverse (18153044402), we get a palindrome (38597079583).

The spelling of 20444035181 in words is "twenty billion, four hundred forty-four million, thirty-five thousand, one hundred eighty-one".