18005180160 has 576 divisors, whose sum is σ = 67136864256. Its totient is φ = 4068556800.

The previous prime is 18005180147. The next prime is 18005180173. The reversal of 18005180160 is 6108150081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18005180147) and next prime (18005180173).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41775145 + ... + 41775575.

It is an arithmetic number, because the mean of its divisors is an integer number (116557056).

Almost surely, 2^18005180160 is an apocalyptic number.

18005180160 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 18005180160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33568432128).

18005180160 is an abundant number, since it is smaller than the sum of its proper divisors (49131684096).

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

18005180160 is a wasteful number, since it uses less digits than its factorization.

18005180160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The spelling of 18005180160 in words is "eighteen billion, five million, one hundred eighty thousand, one hundred sixty".