16672809686 has 32 divisors (see below), whose sum is σ = 27681151680. Its totient is φ = 7481690496.

The previous prime is 16672809683. The next prime is 16672809817. The reversal of 16672809686 is 68690827661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672809683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1494200 + ... + 1505316.

It is an arithmetic number, because the mean of its divisors is an integer number (865035990).

Almost surely, 2^16672809686 is an apocalyptic number.

16672809686 is a deficient number, since it is larger than the sum of its proper divisors (11008341994).

16672809686 is a wasteful number, since it uses less digits than its factorization.

16672809686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 16672809686 in words is "sixteen billion, six hundred seventy-two million, eight hundred nine thousand, six hundred eighty-six".