20333788020 has 576 divisors, whose sum is σ = 82188288000. Its totient is φ = 4101622272.

The previous prime is 20333788019. The next prime is 20333788037. The reversal of 20333788020 is 2088733302.

20333788020 is a `hidden beast` number, since 203 + 3 + 378 + 80 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10170981 + ... + 10172979.

It is an arithmetic number, because the mean of its divisors is an integer number (142688000).

Almost surely, 2^20333788020 is an apocalyptic number.

20333788020 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 20333788020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41094144000).

20333788020 is an abundant number, since it is smaller than the sum of its proper divisors (61854499980).

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

20333788020 is a wasteful number, since it uses less digits than its factorization.

20333788020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066 (or 2052 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 20333788020 in words is "twenty billion, three hundred thirty-three million, seven hundred eighty-eight thousand, twenty".