144491557860 has 192 divisors, whose sum is σ = 484656883200. Its totient is φ = 35526864384.

The previous prime is 144491557807. The next prime is 144491557883. The reversal of 144491557860 is 68755194441.

144491557860 is a `hidden beast` number, since 1 + 4 + 4 + 4 + 9 + 1 + 5 + 578 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 144491557797 and 144491557806.

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, 6440182 + ... + 6462578.

It is an arithmetic number, because the mean of its divisors is an integer number (2524254600).

Almost surely, 2^144491557860 is an apocalyptic number.

144491557860 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 144491557860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242328441600).

144491557860 is an abundant number, since it is smaller than the sum of its proper divisors (340165325340).

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

144491557860 is a wasteful number, since it uses less digits than its factorization.

144491557860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23347 (or 23339 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 144491557860 in words is "one hundred forty-four billion, four hundred ninety-one million, five hundred fifty-seven thousand, eight hundred sixty".