20144214556 has 12 divisors (see below), whose sum is σ = 35348433568. Its totient is φ = 10044662112.

The previous prime is 20144214553. The next prime is 20144214557. The reversal of 20144214556 is 65541244102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144214553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6859641 + ... + 6862576.

Almost surely, 2^20144214556 is an apocalyptic number.

It is an amenable number.

20144214556 is a deficient number, since it is larger than the sum of its proper divisors (15204219012).

20144214556 is a wasteful number, since it uses less digits than its factorization.

20144214556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722588 (or 13722586 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 20144214556 its reverse (65541244102), we get a palindrome (85685458658).

The spelling of 20144214556 in words is "twenty billion, one hundred forty-four million, two hundred fourteen thousand, five hundred fifty-six".