18055544160 has 96 divisors (see below), whose sum is σ = 58412182752. Its totient is φ = 4684677120.

The previous prime is 18055544149. The next prime is 18055544183. The reversal of 18055544160 is 6144555081.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490561 + ... + 526080.

It is an arithmetic number, because the mean of its divisors is an integer number (608460237).

Almost surely, 2^18055544160 is an apocalyptic number.

18055544160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18055544160 is an abundant number, since it is smaller than the sum of its proper divisors (40356638592).

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

18055544160 is a wasteful number, since it uses less digits than its factorization.

18055544160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016696 (or 1016688 counting only the distinct ones).

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

The spelling of 18055544160 in words is "eighteen billion, fifty-five million, five hundred forty-four thousand, one hundred sixty".