144155015405040 has 80 divisors (see below), whose sum is σ = 446934453399936. Its totient is φ = 38436700396800.

The previous prime is 144155015404943. The next prime is 144155015405059. The reversal of 144155015405040 is 40504510551441.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 144155015405040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34232926 + ... + 38212605.

Almost surely, 2^{144155015405040} is an apocalyptic number.

144155015405040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144155015405040 is an abundant number, since it is smaller than the sum of its proper divisors (302779437994896).

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

144155015405040 is a wasteful number, since it uses less digits than its factorization.

144155015405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72453838 (or 72453832 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 39.

Adding to 144155015405040 its reverse (40504510551441), we get a palindrome (184659525956481).

The spelling of 144155015405040 in words is "one hundred forty-four trillion, one hundred fifty-five billion, fifteen million, four hundred five thousand, forty".