155043544560 has 80 divisors (see below), whose sum is σ = 485044565280. Its totient is φ = 40965626880.

The previous prime is 155043544549. The next prime is 155043544597. The reversal of 155043544560 is 65445340551.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2937211 + ... + 2989530.

It is an arithmetic number, because the mean of its divisors is an integer number (6063057066).

Almost surely, 2^155043544560 is an apocalyptic number.

155043544560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155043544560 is an abundant number, since it is smaller than the sum of its proper divisors (330001020720).

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

155043544560 is a wasteful number, since it uses less digits than its factorization.

155043544560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926866 (or 5926860 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 155043544560 in words is "one hundred fifty-five billion, forty-three million, five hundred forty-four thousand, five hundred sixty".