14204145021520 has 160 divisors (see below), whose sum is σ = 35127076723200. Its totient is φ = 5326468305408.

The previous prime is 14204145021509. The next prime is 14204145021529. The reversal of 14204145021520 is 2512054140241.

It is a super-2 number, since 2×14204145021520² (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 (14204145021529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64753467 + ... + 64972453.

It is an arithmetic number, because the mean of its divisors is an integer number (219544229520).

Almost surely, 2^{14204145021520} is an apocalyptic number.

14204145021520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14204145021520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17563538361600).

14204145021520 is an abundant number, since it is smaller than the sum of its proper divisors (20922931701680).

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

14204145021520 is a wasteful number, since it uses less digits than its factorization.

14204145021520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219465 (or 219459 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 14204145021520 its reverse (2512054140241), we get a palindrome (16716199161761).

The spelling of 14204145021520 in words is "fourteen trillion, two hundred four billion, one hundred forty-five million, twenty-one thousand, five hundred twenty".