20011333260 has 96 divisors (see below), whose sum is σ = 57063283200. Its totient is φ = 5238374400.

The previous prime is 20011333219. The next prime is 20011333261. The reversal of 20011333260 is 6233311002.

It is not an unprimeable number, because it can be changed into a prime (20011333261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2718585 + ... + 2725935.

It is an arithmetic number, because the mean of its divisors is an integer number (594409200).

Almost surely, 2^20011333260 is an apocalyptic number.

20011333260 is a gapful number since it is divisible by the number (20) 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 20011333260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28531641600).

20011333260 is an abundant number, since it is smaller than the sum of its proper divisors (37051949940).

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

20011333260 is a wasteful number, since it uses less digits than its factorization.

20011333260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191 (or 8189 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20011333260 its reverse (6233311002), we get a palindrome (26244644262).

The spelling of 20011333260 in words is "twenty billion, eleven million, three hundred thirty-three thousand, two hundred sixty".