16680970 has 16 divisors (see below), whose sum is σ = 30227328. Its totient is φ = 6627600.

The previous prime is 16680943. The next prime is 16680971. The reversal of 16680970 is 7908661.

It is not an unprimeable number, because it can be changed into a prime (16680971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4014 + ... + 7033.

It is an arithmetic number, because the mean of its divisors is an integer number (1889208).

Almost surely, 2^16680970 is an apocalyptic number.

16680970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16680970 is a deficient number, since it is larger than the sum of its proper divisors (13546358).

16680970 is a wasteful number, since it uses less digits than its factorization.

16680970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 16680970 is about 4084.2343223669. The cubic root of 16680970 is about 255.5095284327.

The spelling of 16680970 in words is "sixteen million, six hundred eighty thousand, nine hundred seventy".