144723612220 has 192 divisors, whose sum is σ = 368535121920. Its totient is φ = 47118643200.

The previous prime is 144723612217. The next prime is 144723612247. The reversal of 144723612220 is 22216327441.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6829882 + ... + 6851038.

It is an arithmetic number, because the mean of its divisors is an integer number (1919453760).

Almost surely, 2^144723612220 is an apocalyptic number.

144723612220 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 144723612220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184267560960).

144723612220 is an abundant number, since it is smaller than the sum of its proper divisors (223811509700).

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

144723612220 is a wasteful number, since it uses less digits than its factorization.

144723612220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21284 (or 21282 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 144723612220 its reverse (22216327441), we get a palindrome (166939939661).

The spelling of 144723612220 in words is "one hundred forty-four billion, seven hundred twenty-three million, six hundred twelve thousand, two hundred twenty".