20334287072 has 48 divisors (see below), whose sum is σ = 43810511472. Its totient is φ = 9213649920.

The previous prime is 20334287063. The next prime is 20334287107. The reversal of 20334287072 is 27078243302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20468 + ... + 202700.

It is an arithmetic number, because the mean of its divisors is an integer number (912718989).

Almost surely, 2^20334287072 is an apocalyptic number.

20334287072 is a gapful number since it is divisible by the number (22) 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 20334287072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21905255736).

20334287072 is an abundant number, since it is smaller than the sum of its proper divisors (23476224400).

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

20334287072 is a wasteful number, since it uses less digits than its factorization.

20334287072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182571 (or 182563 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 20334287072 in words is "twenty billion, three hundred thirty-four million, two hundred eighty-seven thousand, seventy-two".