144425515521 has 8 divisors (see below), whose sum is σ = 220076976064. Its totient is φ = 82528866000.

The previous prime is 144425515519. The next prime is 144425515547. The reversal of 144425515521 is 125515524441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144425515521 - 2¹ = 144425515519 is a prime.

It is a super-2 number, since 2×144425515521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144425515521.

It is not an unprimeable number, because it can be changed into a prime (144425513521) 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, 3438702730 + ... + 3438702771.

It is an arithmetic number, because the mean of its divisors is an integer number (27509622008).

Almost surely, 2^144425515521 is an apocalyptic number.

It is an amenable number.

144425515521 is a deficient number, since it is larger than the sum of its proper divisors (75651460543).

144425515521 is an equidigital number, since it uses as much as digits as its factorization.

144425515521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877405511.

The product of its digits is 160000, while the sum is 39.

The spelling of 144425515521 in words is "one hundred forty-four billion, four hundred twenty-five million, five hundred fifteen thousand, five hundred twenty-one".