20334145344 has 112 divisors (see below), whose sum is σ = 56817646080. Its totient is φ = 6400304640.

The previous prime is 20334145339. The next prime is 20334145411. The reversal of 20334145344 is 44354143302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125567 + ... + 1143489.

Almost surely, 2^20334145344 is an apocalyptic number.

20334145344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20334145344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28408823040).

20334145344 is an abundant number, since it is smaller than the sum of its proper divisors (36483500736).

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

20334145344 is a wasteful number, since it uses less digits than its factorization.

20334145344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18268 (or 18258 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20334145344 its reverse (44354143302), we get a palindrome (64688288646).

The spelling of 20334145344 in words is "twenty billion, three hundred thirty-four million, one hundred forty-five thousand, three hundred forty-four".