16661352 has 16 divisors (see below), whose sum is σ = 41653440. Its totient is φ = 5553776.

The previous prime is 16661321. The next prime is 16661363. The reversal of 16661352 is 25316661.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347088 + ... + 347135.

It is an arithmetic number, because the mean of its divisors is an integer number (2603340).

Almost surely, 2^16661352 is an apocalyptic number.

16661352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16661352 is an abundant number, since it is smaller than the sum of its proper divisors (24992088).

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

16661352 is a wasteful number, since it uses less digits than its factorization.

16661352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694232 (or 694228 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 16661352 is about 4081.8319416654. The cubic root of 16661352 is about 255.4093233834.

The spelling of 16661352 in words is "sixteen million, six hundred sixty-one thousand, three hundred fifty-two".