16680354 has 16 divisors (see below), whose sum is σ = 33818592. Its totient is φ = 5483808.

The previous prime is 16680341. The next prime is 16680371. The reversal of 16680354 is 45308661.

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 7 ways as a sum of consecutive naturals, for example, 18604 + ... + 19479.

It is an arithmetic number, because the mean of its divisors is an integer number (2113662).

Almost surely, 2^16680354 is an apocalyptic number.

16680354 is an abundant number, since it is smaller than the sum of its proper divisors (17138238).

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

16680354 is a wasteful number, since it uses less digits than its factorization.

16680354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38161.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 16680354 is about 4084.1589097389. The cubic root of 16680354 is about 255.5063832158.

The spelling of 16680354 in words is "sixteen million, six hundred eighty thousand, three hundred fifty-four".