20183804136 has 192 divisors, whose sum is σ = 57741465600. Its totient is φ = 6361027200.

The previous prime is 20183804131. The next prime is 20183804143. The reversal of 20183804136 is 63140838102.

20183804136 is a `hidden beast` number, since 201 + 8 + 38 + 0 + 413 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20183804136.

It is not an unprimeable number, because it can be changed into a prime (20183804131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20786131 + ... + 20787101.

It is an arithmetic number, because the mean of its divisors is an integer number (300736800).

Almost surely, 2^20183804136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20183804136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28870732800).

20183804136 is an abundant number, since it is smaller than the sum of its proper divisors (37557661464).

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

20183804136 is a wasteful number, since it uses less digits than its factorization.

20183804136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 20183804136 in words is "twenty billion, one hundred eighty-three million, eight hundred four thousand, one hundred thirty-six".