20144131344 has 30 divisors (see below), whose sum is σ = 56375590206. Its totient is φ = 6714710400.

The previous prime is 20144131339. The next prime is 20144131369. The reversal of 20144131344 is 44313144102.

20144131344 is a `hidden beast` number, since 201 + 4 + 413 + 1 + 3 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17500114944 + 2644016400 = 132288^2 + 51420^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69944757 + ... + 69945044.

Almost surely, 2^20144131344 is an apocalyptic number.

20144131344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20144131344 is an abundant number, since it is smaller than the sum of its proper divisors (36231458862).

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

20144131344 is a wasteful number, since it uses less digits than its factorization.

20144131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139889815 (or 139889806 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20144131344 its reverse (44313144102), we get a palindrome (64457275446).

The spelling of 20144131344 in words is "twenty billion, one hundred forty-four million, one hundred thirty-one thousand, three hundred forty-four".