20004012144 has 60 divisors (see below), whose sum is σ = 56307124536. Its totient is φ = 6629452416.

The previous prime is 20004012143. The next prime is 20004012151. The reversal of 20004012144 is 44121040002.

20004012144 is a `hidden beast` number, since 200 + 0 + 401 + 21 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376582 + ... + 426405.

Almost surely, 2^20004012144 is an apocalyptic number.

20004012144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20004012144 is an abundant number, since it is smaller than the sum of its proper divisors (36303112392).

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

20004012144 is a wasteful number, since it uses less digits than its factorization.

20004012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803174 (or 803165 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20004012144 its reverse (44121040002), we get a palindrome (64125052146).

The spelling of 20004012144 in words is "twenty billion, four million, twelve thousand, one hundred forty-four".