144523720366544 has 80 divisors (see below), whose sum is σ = 286009839198720. Its totient is φ = 70729788180480.

The previous prime is 144523720366537. The next prime is 144523720366549. The reversal of 144523720366544 is 445663027325441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144523720366544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144523720366549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119038724 + ... + 120246684.

It is an arithmetic number, because the mean of its divisors is an integer number (3575122989984).

Almost surely, 2^{144523720366544} is an apocalyptic number.

It is an amenable number.

144523720366544 is a deficient number, since it is larger than the sum of its proper divisors (141486118832176).

144523720366544 is a wasteful number, since it uses less digits than its factorization.

144523720366544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208748 (or 1208742 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 56.

The spelling of 144523720366544 in words is "one hundred forty-four trillion, five hundred twenty-three billion, seven hundred twenty million, three hundred sixty-six thousand, five hundred forty-four".