155541540000 has 960 divisors, whose sum is σ = 643452429312. Its totient is φ = 31948800000.

The previous prime is 155541539999. The next prime is 155541540053. The reversal of 155541540000 is 45145551.

155541540000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 155541540000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 605219872 + ... + 605220128.

Almost surely, 2^155541540000 is an apocalyptic number.

155541540000 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 155541540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321726214656).

155541540000 is an abundant number, since it is smaller than the sum of its proper divisors (487910889312).

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

155541540000 is a wasteful number, since it uses less digits than its factorization.

155541540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

Adding to 155541540000 its reverse (45145551), we get a palindrome (155586685551).

The spelling of 155541540000 in words is "one hundred fifty-five billion, five hundred forty-one million, five hundred forty thousand".