144615520000 has 180 divisors, whose sum is σ = 412251424816. Its totient is φ = 49582080000.

The previous prime is 144615519989. The next prime is 144615520003. The reversal of 144615520000 is 25516441.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144615520003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1055440 + ... + 1184560.

Almost surely, 2^144615520000 is an apocalyptic number.

144615520000 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 144615520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206125712408).

144615520000 is an abundant number, since it is smaller than the sum of its proper divisors (267635904816).

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

144615520000 is an frugal number, since it uses more digits than its factorization.

144615520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129164 (or 129135 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 144615520000 in words is "one hundred forty-four billion, six hundred fifteen million, five hundred twenty thousand".