16680422428 has 24 divisors (see below), whose sum is σ = 29679037920. Its totient is φ = 8200787520.

The previous prime is 16680422419. The next prime is 16680422431. The reversal of 16680422428 is 82422408661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874578 + ... + 893446.

It is an arithmetic number, because the mean of its divisors is an integer number (1236626580).

Almost surely, 2^16680422428 is an apocalyptic number.

It is an amenable number.

16680422428 is a deficient number, since it is larger than the sum of its proper divisors (12998615492).

16680422428 is a wasteful number, since it uses less digits than its factorization.

16680422428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22557 (or 22555 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 16680422428 in words is "sixteen billion, six hundred eighty million, four hundred twenty-two thousand, four hundred twenty-eight".