144756445820 has 144 divisors (see below), whose sum is σ = 374738374080. Its totient is φ = 46750233600.

The previous prime is 144756445817. The next prime is 144756445853. The reversal of 144756445820 is 28544657441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1103105 + ... + 1227335.

It is an arithmetic number, because the mean of its divisors is an integer number (2602349820).

Almost surely, 2^144756445820 is an apocalyptic number.

144756445820 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 144756445820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187369187040).

144756445820 is an abundant number, since it is smaller than the sum of its proper divisors (229981928260).

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

144756445820 is a wasteful number, since it uses less digits than its factorization.

144756445820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124324 (or 124315 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 144756445820 in words is "one hundred forty-four billion, seven hundred fifty-six million, four hundred forty-five thousand, eight hundred twenty".