16661346 has 32 divisors (see below), whose sum is σ = 36082368. Its totient is φ = 5098560.

The previous prime is 16661321. The next prime is 16661363. The reversal of 16661346 is 64316661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17236 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (1127574).

Almost surely, 2^16661346 is an apocalyptic number.

16661346 is an abundant number, since it is smaller than the sum of its proper divisors (19421022).

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

16661346 is a wasteful number, since it uses less digits than its factorization.

16661346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its digits is 15552, while the sum is 33.

The square root of 16661346 is about 4081.8312067012. The cubic root of 16661346 is about 255.4092927245.

The spelling of 16661346 in words is "sixteen million, six hundred sixty-one thousand, three hundred forty-six".