144666544 has 40 divisors (see below), whose sum is σ = 308618640. Its totient is φ = 65145600.

The previous prime is 144666539. The next prime is 144666623. The reversal of 144666544 is 445666441.

It is a junction number, because it is equal to n+sod(n) for n = 144666497 and 144666506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15414 + ... + 22954.

It is an arithmetic number, because the mean of its divisors is an integer number (7715466).

Almost surely, 2^144666544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144666544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154309320).

144666544 is an abundant number, since it is smaller than the sum of its proper divisors (163952096).

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

144666544 is a wasteful number, since it uses less digits than its factorization.

144666544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669 (or 7663 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 144666544 is about 12027.7406024573. The cubic root of 144666544 is about 524.9557562110.

The spelling of 144666544 in words is "one hundred forty-four million, six hundred sixty-six thousand, five hundred forty-four".