16661342 has 8 divisors (see below), whose sum is σ = 25081176. Its totient is φ = 8300952.

The previous prime is 16661321. The next prime is 16661363. The reversal of 16661342 is 24316661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16661321) and next prime (16661363).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14153 + ... + 15284.

It is an arithmetic number, because the mean of its divisors is an integer number (3135147).

Almost surely, 2^16661342 is an apocalyptic number.

16661342 is a deficient number, since it is larger than the sum of its proper divisors (8419834).

16661342 is a wasteful number, since it uses less digits than its factorization.

16661342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29722.

The product of its digits is 5184, while the sum is 29.

The square root of 16661342 is about 4081.8307167250. The cubic root of 16661342 is about 255.4092722852.

The spelling of 16661342 in words is "sixteen million, six hundred sixty-one thousand, three hundred forty-two".