20382189120 has 84 divisors (see below), whose sum is σ = 70106247900. Its totient is φ = 5435249664.

The previous prime is 20382189109. The next prime is 20382189131. The reversal of 20382189120 is 2198128302.

It is an interprime number because it is at equal distance from previous prime (20382189109) and next prime (20382189131).

It can be written as a sum of positive squares in 2 ways, for example, as 9796248576 + 10585940544 = 98976^2 + 102888^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3535695 + ... + 3541454.

Almost surely, 2^20382189120 is an apocalyptic number.

20382189120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20382189120 is an abundant number, since it is smaller than the sum of its proper divisors (49724058780).

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

20382189120 is a wasteful number, since it uses less digits than its factorization.

20382189120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077172 (or 7077159 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 20382189120 in words is "twenty billion, three hundred eighty-two million, one hundred eighty-nine thousand, one hundred twenty".