20328861120 has 336 divisors, whose sum is σ = 70067911680. Its totient is φ = 4990386176.

The previous prime is 20328861109. The next prime is 20328861151. The reversal of 20328861120 is 2116882302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13038901 + ... + 13040459.

Almost surely, 2^20328861120 is an apocalyptic number.

20328861120 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 20328861120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35033955840).

20328861120 is an abundant number, since it is smaller than the sum of its proper divisors (49739050560).

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

20328861120 is a wasteful number, since it uses less digits than its factorization.

20328861120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 20328861120 in words is "twenty billion, three hundred twenty-eight million, eight hundred sixty-one thousand, one hundred twenty".