16066840 has 16 divisors (see below), whose sum is σ = 36150480. Its totient is φ = 6426720.

The previous prime is 16066829. The next prime is 16066847. The reversal of 16066840 is 4866061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200796 + ... + 200875.

It is an arithmetic number, because the mean of its divisors is an integer number (2259405).

Almost surely, 2^16066840 is an apocalyptic number.

16066840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16066840 is an abundant number, since it is smaller than the sum of its proper divisors (20083640).

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

16066840 is a wasteful number, since it uses less digits than its factorization.

16066840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401682 (or 401678 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 16066840 is about 4008.3462924253. The cubic root of 16066840 is about 252.3346105107.

The spelling of 16066840 in words is "sixteen million, sixty-six thousand, eight hundred forty".