20040568184 has 128 divisors (see below), whose sum is σ = 49893459840. Its totient is φ = 7320748032.

The previous prime is 20040568139. The next prime is 20040568411. The reversal of 20040568184 is 48186504002.

It is a happy number.

It is a congruent number.

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, 640652 + ... + 671204.

It is an arithmetic number, because the mean of its divisors is an integer number (389792655).

Almost surely, 2^20040568184 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 20040568184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24946729920).

20040568184 is an abundant number, since it is smaller than the sum of its proper divisors (29852891656).

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

20040568184 is a wasteful number, since it uses less digits than its factorization.

20040568184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30649 (or 30645 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 20040568184 in words is "twenty billion, forty million, five hundred sixty-eight thousand, one hundred eighty-four".