144320727776660 has 96 divisors (see below), whose sum is σ = 316572016134528. Its totient is φ = 55218371120640.

The previous prime is 144320727776653. The next prime is 144320727776663. The reversal of 144320727776660 is 66677727023441.

It is a junction number, because it is equal to n+sod(n) for n = 144320727776593 and 144320727776602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144320727776663) 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, 3415742 + ... + 17329418.

It is an arithmetic number, because the mean of its divisors is an integer number (3297625168068).

Almost surely, 2^{144320727776660} is an apocalyptic number.

144320727776660 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 144320727776660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158286008067264).

144320727776660 is an abundant number, since it is smaller than the sum of its proper divisors (172251288357868).

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

144320727776660 is a wasteful number, since it uses less digits than its factorization.

144320727776660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13913961 (or 13913959 counting only the distinct ones).

The product of its (nonzero) digits is 99574272, while the sum is 62.

The spelling of 144320727776660 in words is "one hundred forty-four trillion, three hundred twenty billion, seven hundred twenty-seven million, seven hundred seventy-six thousand, six hundred sixty".