16018508220 has 384 divisors, whose sum is σ = 56093506560. Its totient is φ = 3357573120.

The previous prime is 16018508183. The next prime is 16018508227. The reversal of 16018508220 is 2280581061.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16018508227) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 15812434 + ... + 15813446.

It is an arithmetic number, because the mean of its divisors is an integer number (146076840).

Almost surely, 2^16018508220 is an apocalyptic number.

16018508220 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 16018508220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28046753280).

16018508220 is an abundant number, since it is smaller than the sum of its proper divisors (40074998340).

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

16018508220 is a wasteful number, since it uses less digits than its factorization.

16018508220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 16018508220 in words is "sixteen billion, eighteen million, five hundred eight thousand, two hundred twenty".