16516672428 has 12 divisors (see below), whose sum is σ = 38538902360. Its totient is φ = 5505557472.

The previous prime is 16516672409. The next prime is 16516672483. The reversal of 16516672428 is 82427661561.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 688194673 + ... + 688194696.

Almost surely, 2^16516672428 is an apocalyptic number.

It is an amenable number.

16516672428 is an abundant number, since it is smaller than the sum of its proper divisors (22022229932).

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

16516672428 is a wasteful number, since it uses less digits than its factorization.

16516672428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376389376 (or 1376389374 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 16516672428 in words is "sixteen billion, five hundred sixteen million, six hundred seventy-two thousand, four hundred twenty-eight".