16166340 has 144 divisors (see below), whose sum is σ = 53726400. Its totient is φ = 3919104.

The previous prime is 16166333. The next prime is 16166357. The reversal of 16166340 is 4366161.

16166340 is a `hidden beast` number, since 1 + 616 + 6 + 3 + 40 = 666.

It is a super-2 number, since 2×16166340² = 522701097991200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99099 + ... + 99261.

It is an arithmetic number, because the mean of its divisors is an integer number (373100).

Almost surely, 2^16166340 is an apocalyptic number.

16166340 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 16166340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26863200).

16166340 is an abundant number, since it is smaller than the sum of its proper divisors (37560060).

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

16166340 is a wasteful number, since it uses less digits than its factorization.

16166340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16166340 is about 4020.7387380928. The cubic root of 16166340 is about 252.8544315109.

The spelling of 16166340 in words is "sixteen million, one hundred sixty-six thousand, three hundred forty".