20012144404 has 24 divisors (see below), whose sum is σ = 40050214400. Its totient is φ = 8571077856.

The previous prime is 20012144329. The next prime is 20012144407. The reversal of 20012144404 is 40444121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012144407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187332 + ... + 274075.

Almost surely, 2^20012144404 is an apocalyptic number.

It is an amenable number.

20012144404 is an abundant number, since it is smaller than the sum of its proper divisors (20038069996).

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

20012144404 is a wasteful number, since it uses less digits than its factorization.

20012144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462967 (or 462965 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20012144404 its reverse (40444121002), we get a palindrome (60456265406).

The spelling of 20012144404 in words is "twenty billion, twelve million, one hundred forty-four thousand, four hundred four".