16066380 has 72 divisors (see below), whose sum is σ = 49469616. Its totient is φ = 3893120.

The previous prime is 16066361. The next prime is 16066403. The reversal of 16066380 is 8366061.

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

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 23 ways as a sum of consecutive naturals, for example, 6154 + ... + 8366.

It is an arithmetic number, because the mean of its divisors is an integer number (687078).

Almost surely, 2^16066380 is an apocalyptic number.

16066380 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 16066380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24734808).

16066380 is an abundant number, since it is smaller than the sum of its proper divisors (33403236).

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

16066380 is a wasteful number, since it uses less digits than its factorization.

16066380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 16066380 is about 4008.2889117428. The cubic root of 16066380 is about 252.3322023410.

The spelling of 16066380 in words is "sixteen million, sixty-six thousand, three hundred eighty".