20130220016 has 160 divisors (see below), whose sum is σ = 44277166080. Its totient is φ = 8823859200.

The previous prime is 20130220003. The next prime is 20130220021. The reversal of 20130220016 is 61002203102.

It is a junction number, because it is equal to n+sod(n) for n = 20130219976 and 20130220003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20477861 + ... + 20478843.

It is an arithmetic number, because the mean of its divisors is an integer number (276732288).

Almost surely, 2^20130220016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20130220016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22138583040).

20130220016 is an abundant number, since it is smaller than the sum of its proper divisors (24146946064).

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

20130220016 is a wasteful number, since it uses less digits than its factorization.

20130220016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20130220016 its reverse (61002203102), we get a palindrome (81132423118).

The spelling of 20130220016 in words is "twenty billion, one hundred thirty million, two hundred twenty thousand, sixteen".