16680429633446 has 8 divisors (see below), whose sum is σ = 25020701015400. Its totient is φ = 8340195961648.

The previous prime is 16680429633433. The next prime is 16680429633487. The reversal of 16680429633446 is 64433692408661.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8294471 + ... + 10107378.

It is an arithmetic number, because the mean of its divisors is an integer number (3127587626925).

Almost surely, 2^{16680429633446} is an apocalyptic number.

16680429633446 is a deficient number, since it is larger than the sum of its proper divisors (8340271381954).

16680429633446 is a wasteful number, since it uses less digits than its factorization.

16680429633446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18855078.

The product of its (nonzero) digits is 107495424, while the sum is 62.

The spelling of 16680429633446 in words is "sixteen trillion, six hundred eighty billion, four hundred twenty-nine million, six hundred thirty-three thousand, four hundred forty-six".