16628755676428 has 48 divisors (see below), whose sum is σ = 34911295663104. Its totient is φ = 6775938037440.

The previous prime is 16628755676399. The next prime is 16628755676431. The reversal of 16628755676428 is 82467655782661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77200983 + ... + 77416078.

It is an arithmetic number, because the mean of its divisors is an integer number (727318659648).

Almost surely, 2^{16628755676428} is an apocalyptic number.

It is an amenable number.

16628755676428 is an abundant number, since it is smaller than the sum of its proper divisors (18282539986676).

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

16628755676428 is a wasteful number, since it uses less digits than its factorization.

16628755676428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154617262 (or 154617260 counting only the distinct ones).

The product of its digits is 1625702400, while the sum is 73.

The spelling of 16628755676428 in words is "sixteen trillion, six hundred twenty-eight billion, seven hundred fifty-five million, six hundred seventy-six thousand, four hundred twenty-eight".