20144451125214 has 24 divisors (see below), whose sum is σ = 47003719292712. Its totient is φ = 6198292653840.

The previous prime is 20144451125189. The next prime is 20144451125219. The reversal of 20144451125214 is 41252115444102.

It is a happy number.

20144451125214 is a `hidden beast` number, since 2 + 0 + 14 + 4 + 4 + 5 + 112 + 521 + 4 = 666.

It is a super-2 number, since 2×20144451125214² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144451125219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43043698752 + ... + 43043699219.

It is an arithmetic number, because the mean of its divisors is an integer number (1958488303863).

Almost surely, 2^{20144451125214} is an apocalyptic number.

20144451125214 is an abundant number, since it is smaller than the sum of its proper divisors (26859268167498).

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

20144451125214 is a wasteful number, since it uses less digits than its factorization.

20144451125214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86087397992 (or 86087397989 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

Adding to 20144451125214 its reverse (41252115444102), we get a palindrome (61396566569316).

The spelling of 20144451125214 in words is "twenty trillion, one hundred forty-four billion, four hundred fifty-one million, one hundred twenty-five thousand, two hundred fourteen".