20185714120 has 128 divisors (see below), whose sum is σ = 53417024640. Its totient is φ = 6768138240.

The previous prime is 20185714069. The next prime is 20185714141. The reversal of 20185714120 is 2141758102.

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, 8161204 + ... + 8163676.

It is an arithmetic number, because the mean of its divisors is an integer number (417320505).

Almost surely, 2^20185714120 is an apocalyptic number.

20185714120 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 20185714120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26708512320).

20185714120 is an abundant number, since it is smaller than the sum of its proper divisors (33231310520).

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

20185714120 is a wasteful number, since it uses less digits than its factorization.

20185714120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935 (or 3931 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The spelling of 20185714120 in words is "twenty billion, one hundred eighty-five million, seven hundred fourteen thousand, one hundred twenty".