20000133330 has 128 divisors (see below), whose sum is σ = 51078988800. Its totient is φ = 5002905600.

The previous prime is 20000133319. The next prime is 20000133337. The reversal of 20000133330 is 3333100002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20000133337) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9665536 + ... + 9667604.

It is an arithmetic number, because the mean of its divisors is an integer number (399054600).

Almost surely, 2^20000133330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000133330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25539494400).

20000133330 is an abundant number, since it is smaller than the sum of its proper divisors (31078855470).

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

20000133330 is a wasteful number, since it uses less digits than its factorization.

20000133330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 162, while the sum is 15.

Adding to 20000133330 its reverse (3333100002), we get a palindrome (23333233332).

The spelling of 20000133330 in words is "twenty billion, one hundred thirty-three thousand, three hundred thirty".