16681354 has 8 divisors (see below), whose sum is σ = 26339040. Its totient is φ = 7901676.

The previous prime is 16681337. The next prime is 16681361. The reversal of 16681354 is 45318661.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219454 + ... + 219529.

It is an arithmetic number, because the mean of its divisors is an integer number (3292380).

Almost surely, 2^16681354 is an apocalyptic number.

16681354 is a deficient number, since it is larger than the sum of its proper divisors (9657686).

16681354 is a wasteful number, since it uses less digits than its factorization.

16681354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439004.

The product of its digits is 17280, while the sum is 34.

The square root of 16681354 is about 4084.2813321318. The cubic root of 16681354 is about 255.5114890482.

The spelling of 16681354 in words is "sixteen million, six hundred eighty-one thousand, three hundred fifty-four".