155535441200 has 120 divisors (see below), whose sum is σ = 398177541792. Its totient is φ = 58181160960.

The previous prime is 155535441137. The next prime is 155535441239. The reversal of 155535441200 is 2144535551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994757 + ... + 1140443.

Almost surely, 2^155535441200 is an apocalyptic number.

155535441200 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 155535441200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199088770896).

155535441200 is an abundant number, since it is smaller than the sum of its proper divisors (242642100592).

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

155535441200 is a wasteful number, since it uses less digits than its factorization.

155535441200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145879 (or 145868 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 155535441200 its reverse (2144535551), we get a palindrome (157679976751).

The spelling of 155535441200 in words is "one hundred fifty-five billion, five hundred thirty-five million, four hundred forty-one thousand, two hundred".