155345880000 has 280 divisors, whose sum is σ = 514528198272. Its totient is φ = 41351552000.

The previous prime is 155345879999. The next prime is 155345880043. The reversal of 155345880000 is 88543551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 113639317 + ... + 113640683.

Almost surely, 2^155345880000 is an apocalyptic number.

155345880000 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 155345880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257264099136).

155345880000 is an abundant number, since it is smaller than the sum of its proper divisors (359182318272).

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

155345880000 is an equidigital number, since it uses as much as digits as its factorization.

155345880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 155345880000 in words is "one hundred fifty-five billion, three hundred forty-five million, eight hundred eighty thousand".