18016155300 has 864 divisors, whose sum is σ = 69505551360. Its totient is φ = 3535488000.

The previous prime is 18016155247. The next prime is 18016155301. The reversal of 18016155300 is 355161081.

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

It is not an unprimeable number, because it can be changed into a prime (18016155301) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 581166285 + ... + 581166315.

It is an arithmetic number, because the mean of its divisors is an integer number (80446240).

Almost surely, 2^18016155300 is an apocalyptic number.

18016155300 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 18016155300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34752775680).

18016155300 is an abundant number, since it is smaller than the sum of its proper divisors (51489396060).

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

18016155300 is a wasteful number, since it uses less digits than its factorization.

18016155300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 18016155300 in words is "eighteen billion, sixteen million, one hundred fifty-five thousand, three hundred".