20344331233616 has 40 divisors (see below), whose sum is σ = 44294848281600. Its totient is φ = 8981443886976.

The previous prime is 20344331233561. The next prime is 20344331233649. The reversal of 20344331233616 is 61633213344302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126284016 + ... + 2126293583.

It is an arithmetic number, because the mean of its divisors is an integer number (1107371207040).

Almost surely, 2^{20344331233616} is an apocalyptic number.

20344331233616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20344331233616 is an abundant number, since it is smaller than the sum of its proper divisors (23950517047984).

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

20344331233616 is a wasteful number, since it uses less digits than its factorization.

20344331233616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252577643 (or 4252577637 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 41.

Adding to 20344331233616 its reverse (61633213344302), we get a palindrome (81977544577918).

The spelling of 20344331233616 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty-one million, two hundred thirty-three thousand, six hundred sixteen".