155544545200 has 120 divisors (see below), whose sum is σ = 411277109616. Its totient is φ = 56060928000.

The previous prime is 155544545161. The next prime is 155544545243. The reversal of 155544545200 is 2545445551.

155544545200 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 (40).

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 23 ways as a sum of consecutive naturals, for example, 340780 + ... + 653620.

Almost surely, 2^155544545200 is an apocalyptic number.

155544545200 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 155544545200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205638554808).

155544545200 is an abundant number, since it is smaller than the sum of its proper divisors (255732564416).

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

155544545200 is a wasteful number, since it uses less digits than its factorization.

155544545200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312983 (or 312972 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 155544545200 in words is "one hundred fifty-five billion, five hundred forty-four million, five hundred forty-five thousand, two hundred".