144454122021550 has 96 divisors (see below), whose sum is σ = 309107738160000. Its totient is φ = 49672112112000.

The previous prime is 144454122021467. The next prime is 144454122021553. The reversal of 144454122021550 is 55120221454441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144454122021553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7122300 + ... + 18429199.

It is an arithmetic number, because the mean of its divisors is an integer number (3219872272500).

Almost surely, 2^{144454122021550} is an apocalyptic number.

144454122021550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144454122021550 is an abundant number, since it is smaller than the sum of its proper divisors (164653616138450).

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

144454122021550 is a wasteful number, since it uses less digits than its factorization.

144454122021550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25552082 (or 25552077 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 144454122021550 its reverse (55120221454441), we get a palindrome (199574343475991).

The spelling of 144454122021550 in words is "one hundred forty-four trillion, four hundred fifty-four billion, one hundred twenty-two million, twenty-one thousand, five hundred fifty".