155503241344 has 192 divisors, whose sum is σ = 358658707680. Its totient is φ = 66560614400.

The previous prime is 155503241297. The next prime is 155503241363. The reversal of 155503241344 is 443142305551.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48547647 + ... + 48550849.

Almost surely, 2^155503241344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155503241344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179329353840).

155503241344 is an abundant number, since it is smaller than the sum of its proper divisors (203155466336).

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

155503241344 is a wasteful number, since it uses less digits than its factorization.

155503241344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327 (or 3286 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 155503241344 its reverse (443142305551), we get a palindrome (598645546895).

The spelling of 155503241344 in words is "one hundred fifty-five billion, five hundred three million, two hundred forty-one thousand, three hundred forty-four".